Tag 4.4.10

Built from https://develop.svn.wordpress.org/tags/4.4.10@40762 git-svn-id: http://core.svn.wordpress.org/tags/4.4.10@40620 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Bump 4.7 branch to version 4.4.10.
2017-05-16 22:37:09 +00:00 · 2017-05-16 21:51:30 +00:00 · 2017-05-16 18:03:01 +00:00 · 2017-05-16 14:55:30 +00:00 · 2017-05-16 12:17:32 +00:00 · 2017-05-16 08:51:31 +00:00
40 changed files with 781 additions and 195 deletions
--- a/license.txt
+++ b/license.txt
@@ -1,6 +1,6 @@
 WordPress - Web publishing software

-Copyright 2016 by the contributors
+Copyright 2017 by the contributors

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
--- a/readme.html
+++ b/readme.html
@@ -9,7 +9,7 @@
 <body>
 <h1 id="logo">
 	<a href="https://wordpress.org/"><img alt="WordPress" src="wp-admin/images/wordpress-logo.png" /></a>
-	<br /> Version 4.4.3
+	<br /> Version 4.4.10
 </h1>
 <p style="text-align: center">Semantic Personal Publishing Platform</p>

--- a/wp-admin/about.php
+++ b/wp-admin/about.php
@@ -50,6 +50,29 @@ include( ABSPATH . 'wp-admin/admin-header.php' );

 		<div class="changelog point-releases">
 			<h3><?php _e( 'Maintenance and Security Releases' ); ?> </h3>
+			<p><?php printf( __( '<strong>Version %s</strong> addressed some security issues.' ), '4.4.10' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.10' ); ?>
+			</p>
+			<p><?php printf( _n( '<strong>Version %1$s</strong> addressed %2$s bug.',
+					'<strong>Version %1$s</strong> addressed %2$s bugs.', 1 ), '4.4.9', number_format_i18n( 1 ) ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.9' ); ?>
+			</p>
+			<p><?php printf( __( '<strong>Version %s</strong> addressed some security issues.' ), '4.4.8' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.8' ); ?>
+			</p>
+			<p><?php printf( __( '<strong>Version %s</strong> addressed some security issues.' ), '4.4.7' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.7' ); ?>
+			</p>
+			<p><?php printf( __( '<strong>Version %s</strong> addressed some security issues.' ), '4.4.6' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.6' ); ?>
+			</p>
+			<p><?php printf( _n( '<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bug.',
+				'<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bugs.', 1 ), '4.4.5', number_format_i18n( 1 ) ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.5' ); ?>
+			</p>
+			<p><?php printf( __( '<strong>Version %s</strong> addressed some security issues.' ), '4.4.4' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.4' ); ?>
+			</p>
 			<p><?php printf( _n( '<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bug.',
 				'<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bugs.', 6 ), '4.4.3', number_format_i18n( 6 ) ); ?>
 				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.4.3' ); ?>
--- a/wp-admin/customize.php
+++ b/wp-admin/customize.php
@@ -132,7 +132,7 @@ do_action( 'customize_controls_print_scripts' );
 			<div id="customize-info" class="accordion-section customize-info">
 				<div class="accordion-section-title">
 					<span class="preview-notice"><?php
-						echo sprintf( __( 'You are customizing %s' ), '<strong class="panel-title site-title">' . get_bloginfo( 'name' ) . '</strong>' );
+						echo sprintf( __( 'You are customizing %s' ), '<strong class="panel-title site-title">' . get_bloginfo( 'name', 'display' ) . '</strong>' );
 					?></span>
 					<button class="customize-help-toggle dashicons dashicons-editor-help" aria-expanded="false"><span class="screen-reader-text"><?php _e( 'Help' ); ?></span></button>
 				</div>
--- a/wp-admin/includes/ajax-actions.php
+++ b/wp-admin/includes/ajax-actions.php
@@ -2754,7 +2754,7 @@ function wp_ajax_get_revision_diffs() {
 	if ( ! $post = get_post( (int) $_REQUEST['post_id'] ) )
 		wp_send_json_error();

-	if ( ! current_user_can( 'read_post', $post->ID ) )
+	if ( ! current_user_can( 'edit_post', $post->ID ) )
 		wp_send_json_error();

 	// Really just pre-loading the cache here.
--- a/wp-admin/includes/class-wp-media-list-table.php
+++ b/wp-admin/includes/class-wp-media-list-table.php
@@ -392,7 +392,7 @@ class WP_Media_List_Table extends WP_List_Table {
 			<span class="screen-reader-text"><?php _e( 'File name:' ); ?> </span>
 			<?php
 			$file = get_attached_file( $post->ID );
-			echo wp_basename( $file );
+			echo esc_html( wp_basename( $file ) );
 			?>
 		</p>
 		<?php
--- a/wp-admin/includes/class-wp-posts-list-table.php
+++ b/wp-admin/includes/class-wp-posts-list-table.php
@@ -905,7 +905,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 		}

 		if ( ! is_post_type_hierarchical( $this->screen->post_type ) && 'excerpt' === $mode && current_user_can( 'read_post', $post->ID ) ) {
-			the_excerpt();
+			echo esc_html( get_the_excerpt() );
 		}

 		get_inline_data( $post );
--- a/wp-admin/includes/class-wp-press-this.php
+++ b/wp-admin/includes/class-wp-press-this.php
@@ -119,10 +119,28 @@ class WP_Press_This {
 			'post_type'     => 'post',
 			'post_status'   => 'draft',
 			'post_format'   => ( ! empty( $_POST['post_format'] ) ) ? sanitize_text_field( $_POST['post_format'] ) : '',
-			'tax_input'     => ( ! empty( $_POST['tax_input'] ) ) ? $_POST['tax_input'] : array(),
-			'post_category' => ( ! empty( $_POST['post_category'] ) ) ? $_POST['post_category'] : array(),
 		);

+		// Only accept categories if the user actually can assign
+		$category_tax = get_taxonomy( 'category' );
+		if ( current_user_can( $category_tax->cap->assign_terms ) ) {
+			$post_data['post_category'] = ( ! empty( $_POST['post_category'] ) ) ? $_POST['post_category'] : array();
+		}
+
+		// Only accept taxonomies if the user can actually assign
+		if ( ! empty( $_POST['tax_input'] ) ) {
+			$tax_input = $_POST['tax_input'];
+			foreach ( $tax_input as $tax => $_ti ) {
+				$tax_object = get_taxonomy( $tax );
+				if ( ! $tax_object || ! current_user_can( $tax_object->cap->assign_terms ) ) {
+					unset( $tax_input[ $tax ] );
+				}
+			}
+
+			$post_data['tax_input'] = $tax_input;
+		}
+
+		// Toggle status to pending if user cannot actually publish
 		if ( ! empty( $_POST['post_status'] ) && 'publish' === $_POST['post_status'] ) {
 			if ( current_user_can( 'publish_posts' ) ) {
 				$post['post_status'] = 'publish';
@@ -444,7 +462,7 @@ class WP_Press_This {
 	 * @since 4.2.0
 	 *
 	 * @param string $src Embed source URL.
-	 * @return string If not from a supported provider, an empty string. Otherwise, a reformattd embed URL.
+	 * @return string If not from a supported provider, an empty string. Otherwise, a reformatted embed URL.
 	 */
 	private function _limit_embed( $src ) {
 		$src = $this->_limit_url( $src );
@@ -692,7 +710,11 @@ class WP_Press_This {
 			 * making PT fully backward compatible with the older bookmarklet.
 			 */
 			if ( empty( $_POST ) && ! empty( $data['u'] ) ) {
-				$data = $this->source_data_fetch_fallback( $data['u'], $data );
+				if ( isset( $_GET['_wpnonce'] ) && wp_verify_nonce( $_GET['_wpnonce'], 'scan-site' ) ) {
+					$data = $this->source_data_fetch_fallback( $data['u'], $data );
+				} else {
+					$data['errors'] = 'missing nonce';
+				}
 			} else {
 				foreach ( array( '_images', '_embeds' ) as $type ) {
 					if ( empty( $_POST[ $type ] ) ) {
@@ -874,6 +896,12 @@ class WP_Press_This {
 	public function categories_html( $post ) {
 		$taxonomy = get_taxonomy( 'category' );

+		// Bail if user cannot assign terms
+		if ( ! current_user_can( $taxonomy->cap->assign_terms ) ) {
+			return;
+		}
+
+		// Only show "add" if user can edit terms
 		if ( current_user_can( $taxonomy->cap->edit_terms ) ) {
 			?>
 			<button type="button" class="add-cat-toggle button-link" aria-expanded="false">
@@ -1226,7 +1254,7 @@ class WP_Press_This {
 		$site_data = array(
 			'v' => ! empty( $data['v'] ) ? $data['v'] : '',
 			'u' => ! empty( $data['u'] ) ? $data['u'] : '',
-			'hasData' => ! empty( $data ),
+			'hasData' => ! empty( $data ) && ! isset( $data['errors'] ),
 		);

 		if ( ! empty( $images ) ) {
@@ -1287,6 +1315,12 @@ class WP_Press_This {
 		wp_enqueue_script( 'json2' );
 		wp_enqueue_script( 'editor' );

+		$categories_tax   = get_taxonomy( 'category' );
+		$show_categories  = current_user_can( $categories_tax->cap->assign_terms ) || current_user_can( $categories_tax->cap->edit_terms );
+
+		$tag_tax          = get_taxonomy( 'post_tag' );
+		$show_tags        = current_user_can( $tag_tax->cap->assign_terms );
+
 		$supports_formats = false;
 		$post_format      = 0;

@@ -1352,8 +1386,9 @@ class WP_Press_This {
 	<div id="scanbar" class="scan">
 		<form method="GET">
 			<label for="url-scan" class="screen-reader-text"><?php _e( 'Scan site for content' ); ?></label>
-			<input type="url" name="u" id="url-scan" class="scan-url" value="" placeholder="<?php esc_attr_e( 'Enter a URL to scan' ) ?>" />
+			<input type="url" name="u" id="url-scan" class="scan-url" value="<?php echo esc_attr( $site_data['u'] ) ?>" placeholder="<?php esc_attr_e( 'Enter a URL to scan' ) ?>" />
 			<input type="submit" name="url-scan-submit" id="url-scan-submit" class="scan-submit" value="<?php esc_attr_e( 'Scan' ) ?>" />
+			<?php wp_nonce_field( 'scan-site' ); ?>
 		</form>
 	</div>

@@ -1438,17 +1473,21 @@ class WP_Press_This {
 					</button>
 				<?php endif; ?>

-				<button type="button" class="button-link post-option">
-					<span class="dashicons dashicons-category"></span>
-					<span class="post-option-title"><?php _e( 'Categories' ); ?></span>
-					<span class="dashicons post-option-forward"></span>
-				</button>
+				<?php if ( $show_categories ) : ?>
+					<button type="button" class="button-link post-option">
+						<span class="dashicons dashicons-category"></span>
+						<span class="post-option-title"><?php _e( 'Categories' ); ?></span>
+						<span class="dashicons post-option-forward"></span>
+					</button>
+				<?php endif; ?>

-				<button type="button" class="button-link post-option">
-					<span class="dashicons dashicons-tag"></span>
-					<span class="post-option-title"><?php _e( 'Tags' ); ?></span>
-					<span class="dashicons post-option-forward"></span>
-				</button>
+				<?php if ( $show_tags ) : ?>
+					<button type="button" class="button-link post-option">
+						<span class="dashicons dashicons-tag"></span>
+						<span class="post-option-title"><?php _e( 'Tags' ); ?></span>
+						<span class="dashicons post-option-forward"></span>
+					</button>
+				<?php endif; ?>
 			</div>

 			<?php if ( $supports_formats ) : ?>
@@ -1462,23 +1501,27 @@ class WP_Press_This {
 				</div>
 			<?php endif; ?>

-			<div class="setting-modal is-off-screen is-hidden">
-				<button type="button" class="button-link modal-close">
-					<span class="dashicons post-option-back"></span>
-					<span class="setting-title" aria-hidden="true"><?php _e( 'Categories' ); ?></span>
-					<span class="screen-reader-text"><?php _e( 'Back to post options' ) ?></span>
-				</button>
-				<?php $this->categories_html( $post ); ?>
-			</div>
+			<?php if ( $show_categories ) : ?>
+				<div class="setting-modal is-off-screen is-hidden">
+					<button type="button" class="button-link modal-close">
+						<span class="dashicons post-option-back"></span>
+						<span class="setting-title" aria-hidden="true"><?php _e( 'Categories' ); ?></span>
+						<span class="screen-reader-text"><?php _e( 'Back to post options' ) ?></span>
+					</button>
+					<?php $this->categories_html( $post ); ?>
+				</div>
+			<?php endif; ?>

-			<div class="setting-modal tags is-off-screen is-hidden">
-				<button type="button" class="button-link modal-close">
-					<span class="dashicons post-option-back"></span>
-					<span class="setting-title" aria-hidden="true"><?php _e( 'Tags' ); ?></span>
-					<span class="screen-reader-text"><?php _e( 'Back to post options' ) ?></span>
-				</button>
-				<?php $this->tags_html( $post ); ?>
-			</div>
+			<?php if ( $show_tags ) : ?>
+				<div class="setting-modal tags is-off-screen is-hidden">
+					<button type="button" class="button-link modal-close">
+						<span class="dashicons post-option-back"></span>
+						<span class="setting-title" aria-hidden="true"><?php _e( 'Tags' ); ?></span>
+						<span class="screen-reader-text"><?php _e( 'Back to post options' ) ?></span>
+					</button>
+					<?php $this->tags_html( $post ); ?>
+				</div>
+			<?php endif; ?>
 		</div><!-- .options-panel -->
 	</div><!-- .wrapper -->

--- a/wp-admin/includes/class-wp-screen.php
+++ b/wp-admin/includes/class-wp-screen.php
@@ -915,7 +915,8 @@ final class WP_Screen {

 		switch ( $this->base ) {
 			case 'widgets':
-				$this->_screen_settings = '<p><a id="access-on" href="widgets.php?widgets-access=on">' . __('Enable accessibility mode') . '</a><a id="access-off" href="widgets.php?widgets-access=off">' . __('Disable accessibility mode') . "</a></p>\n";
+				$nonce = wp_create_nonce( 'widgets-access' );
+				$this->_screen_settings = '<p><a id="access-on" href="widgets.php?widgets-access=on&_wpnonce=' . urlencode( $nonce ) . '">' . __('Enable accessibility mode') . '</a><a id="access-off" href="widgets.php?widgets-access=off&_wpnonce=' . urlencode( $nonce ) . '">' . __('Disable accessibility mode') . "</a></p>\n";
 				break;
 			case 'post' :
 				$expand = '<fieldset class="editor-expand hidden"><legend>' . __( 'Additional settings' ) . '</legend><label for="editor-expand-toggle">';
--- a/wp-admin/includes/class-wp-upgrader.php
+++ b/wp-admin/includes/class-wp-upgrader.php
@@ -2580,8 +2580,12 @@ class File_Upload_Upgrader {
 			if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
 				wp_die( $uploads['error'] );

-			$this->filename = $_GET[$urlholder];
+			$this->filename = sanitize_file_name( $_GET[ $urlholder ] );
 			$this->package = $uploads['basedir'] . '/' . $this->filename;
+
+			if ( 0 !== strpos( realpath( $this->package ), realpath( $uploads['basedir'] ) ) ) {
+				wp_die( __( 'Please select a file' ) );
+			}
 		}
 	}

--- a/wp-admin/includes/file.php
+++ b/wp-admin/includes/file.php
@@ -1060,14 +1060,28 @@ function request_filesystem_credentials($form_post, $type = '', $error = false,

 	$credentials = get_option('ftp_credentials', array( 'hostname' => '', 'username' => ''));

+	$submitted_form = wp_unslash( $_POST );
+
+	// Verify nonce, or unset submitted form field values on failure
+	if ( ! isset( $_POST['_fs_nonce'] ) || ! wp_verify_nonce( $_POST['_fs_nonce'], 'filesystem-credentials' ) ) {
+		unset(
+			$submitted_form['hostname'],
+			$submitted_form['username'],
+			$submitted_form['password'],
+			$submitted_form['public_key'],
+			$submitted_form['private_key'],
+			$submitted_form['connection_type']
+		);
+	}
+
 	// If defined, set it to that, Else, If POST'd, set it to that, If not, Set it to whatever it previously was(saved details in option)
-	$credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($_POST['hostname']) ? wp_unslash( $_POST['hostname'] ) : $credentials['hostname']);
-	$credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($_POST['username']) ? wp_unslash( $_POST['username'] ) : $credentials['username']);
-	$credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($_POST['password']) ? wp_unslash( $_POST['password'] ) : '');
+	$credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($submitted_form['hostname']) ? $submitted_form['hostname'] : $credentials['hostname']);
+	$credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($submitted_form['username']) ? $submitted_form['username'] : $credentials['username']);
+	$credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($submitted_form['password']) ? $submitted_form['password'] : '');

 	// Check to see if we are setting the public/private keys for ssh
-	$credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($_POST['public_key']) ? wp_unslash( $_POST['public_key'] ) : '');
-	$credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($_POST['private_key']) ? wp_unslash( $_POST['private_key'] ) : '');
+	$credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($submitted_form['public_key']) ? $submitted_form['public_key'] : '');
+	$credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($submitted_form['private_key']) ? $submitted_form['private_key'] : '');

 	// Sanitize the hostname, Some people might pass in odd-data:
 	$credentials['hostname'] = preg_replace('|\w+://|', '', $credentials['hostname']); //Strip any schemes off
@@ -1084,8 +1098,8 @@ function request_filesystem_credentials($form_post, $type = '', $error = false,
 		$credentials['connection_type'] = 'ssh';
 	} elseif ( ( defined( 'FTP_SSL' ) && FTP_SSL ) && 'ftpext' == $type ) { //Only the FTP Extension understands SSL
 		$credentials['connection_type'] = 'ftps';
-	} elseif ( ! empty( $_POST['connection_type'] ) ) {
-		$credentials['connection_type'] = wp_unslash( $_POST['connection_type'] );
+	} elseif ( ! empty( $submitted_form['connection_type'] ) ) {
+		$credentials['connection_type'] = $submitted_form['connection_type'];
 	} elseif ( ! isset( $credentials['connection_type'] ) ) { //All else fails (And it's not defaulted to something else saved), Default to FTP
 		$credentials['connection_type'] = 'ftp';
 	}
@@ -1227,11 +1241,12 @@ echo "<$heading_tag id='request-filesystem-credentials-title'>" . __( 'Connectio
 </fieldset>
 <?php
 foreach ( (array) $extra_fields as $field ) {
-	if ( isset( $_POST[ $field ] ) )
-		echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( wp_unslash( $_POST[ $field ] ) ) . '" />';
+	if ( isset( $submitted_form[ $field ] ) )
+		echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( $submitted_form[ $field ] ) . '" />';
 }
 ?>
 	<p class="request-filesystem-credentials-action-buttons">
+		<?php wp_nonce_field( 'filesystem-credentials', '_fs_nonce', false, true ); ?>
 		<button class="button cancel-button" data-js-action="close" type="button"><?php _e( 'Cancel' ); ?></button>
 		<?php submit_button( __( 'Proceed' ), 'button', 'upgrade', false ); ?>
 	</p>
--- a/wp-admin/includes/media.php
+++ b/wp-admin/includes/media.php
@@ -286,7 +286,7 @@ function media_handle_upload($file_id, $post_id, $post_data = array(), $override
 	$url = $file['url'];
 	$type = $file['type'];
 	$file = $file['file'];
-	$title = $name;
+	$title = sanitize_text_field( $name );
 	$content = '';
 	$excerpt = '';

@@ -2938,7 +2938,7 @@ function wp_add_id3_tag_data( &$metadata, $data ) {
 		if ( ! empty( $data[$version]['comments'] ) ) {
 			foreach ( $data[$version]['comments'] as $key => $list ) {
 				if ( 'length' !== $key && ! empty( $list ) ) {
-					$metadata[$key] = reset( $list );
+					$metadata[$key] = wp_kses_post( reset( $list ) );
 					// Fix bug in byte stream analysis.
 					if ( 'terms_of_use' === $key && 0 === strpos( $metadata[$key], 'yright notice.' ) )
 						$metadata[$key] = 'Cop' . $metadata[$key];
--- a/wp-admin/includes/post.php
+++ b/wp-admin/includes/post.php
@@ -165,6 +165,13 @@ function _wp_translate_postdata( $update = false, $post_data = null ) {
 		$post_data['post_date_gmt'] = get_gmt_from_date( $post_data['post_date'] );
 	}

+	if ( isset( $post_data['post_category'] ) ) {
+		$category_object = get_taxonomy( 'category' );
+		if ( ! current_user_can( $category_object->cap->assign_terms ) ) {
+			unset( $post_data['post_category'] );
+		}
+	}
+
 	return $post_data;
 }

@@ -1302,7 +1309,7 @@ function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
 				$view_link = get_permalink( $post );
 			} else {
 				// Allow non-published (private, future) to be viewed at a pretty permalink.
-				$view_link = str_replace( array( '%pagename%', '%postname%' ), $post->post_name, urldecode( $permalink ) );
+				$view_link = str_replace( array( '%pagename%', '%postname%' ), $post->post_name, $permalink );
 			}
 		}
 	}
@@ -1312,7 +1319,8 @@ function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
 		$return = '<strong>' . __( 'Permalink:' ) . "</strong>\n";

 		if ( false !== $view_link ) {
-			$return .= '<a id="sample-permalink" href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . $view_link . "</a>\n";
+			$display_link = urldecode( $view_link );
+			$return .= '<a id="sample-permalink" href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . esc_html( $display_link ) . "</a>\n";
 		} else {
 			$return .= '<span id="sample-permalink">' . $permalink . "</span>\n";
 		}
@@ -1336,14 +1344,14 @@ function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
 			}
 		}

-		$post_name_html = '<span id="editable-post-name">' . $post_name_abridged . '</span>';
-		$display_link = str_replace( array( '%pagename%', '%postname%' ), $post_name_html, urldecode( $permalink ) );
+		$post_name_html = '<span id="editable-post-name">' . esc_html( $post_name_abridged ) . '</span>';
+		$display_link = str_replace( array( '%pagename%', '%postname%' ), $post_name_html, esc_html( urldecode( $permalink ) ) );

 		$return = '<strong>' . __( 'Permalink:' ) . "</strong>\n";
 		$return .= '<span id="sample-permalink"><a href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . $display_link . "</a></span>\n";
 		$return .= '&lrm;'; // Fix bi-directional text display defect in RTL languages.
 		$return .= '<span id="edit-slug-buttons"><button type="button" class="edit-slug button button-small hide-if-no-js" aria-label="' . __( 'Edit permalink' ) . '">' . __( 'Edit' ) . "</button></span>\n";
-		$return .= '<span id="editable-post-name-full">' . $post_name . "</span>\n";
+		$return .= '<span id="editable-post-name-full">' . esc_html( $post_name ) . "</span>\n";
 	}

 	/**
@@ -1840,4 +1848,4 @@ function redirect_post($post_id = '') {
 	 */
 	wp_redirect( apply_filters( 'redirect_post_location', $location, $post_id ) );
 	exit;
-}
+}
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -2096,6 +2096,9 @@ function dbDelta( $queries = '', $execute = true ) {
 	 */
 	$iqueries = apply_filters( 'dbdelta_insert_queries', $iqueries );

+	$text_fields = array( 'tinytext', 'text', 'mediumtext', 'longtext' );
+	$blob_fields = array( 'tinyblob', 'blob', 'mediumblob', 'longblob' );
+
 	$global_tables = $wpdb->tables( 'global' );
 	foreach ( $cqueries as $table => $qry ) {
 		// Upgrade global tables only for the main site. Don't upgrade at all if conditions are not optimal.
@@ -2165,9 +2168,24 @@ function dbDelta( $queries = '', $execute = true ) {

 				// Is actual field type different from the field type in query?
 				if ($tablefield->Type != $fieldtype) {
+					$do_change = true;
+					if ( in_array( strtolower( $fieldtype ), $text_fields ) && in_array( strtolower( $tablefield->Type ), $text_fields ) ) {
+						if ( array_search( strtolower( $fieldtype ), $text_fields ) < array_search( strtolower( $tablefield->Type ), $text_fields ) ) {
+							$do_change = false;
+						}
+					}
+
+					if ( in_array( strtolower( $fieldtype ), $blob_fields ) && in_array( strtolower( $tablefield->Type ), $blob_fields ) ) {
+						if ( array_search( strtolower( $fieldtype ), $blob_fields ) < array_search( strtolower( $tablefield->Type ), $blob_fields ) ) {
+							$do_change = false;
+						}
+					}
+
+					if ( $do_change ) {
 					// Add a query to change the column type
-					$cqueries[] = "ALTER TABLE {$table} CHANGE COLUMN {$tablefield->Field} " . $cfields[strtolower($tablefield->Field)];
-					$for_update[$table.'.'.$tablefield->Field] = "Changed type of {$table}.{$tablefield->Field} from {$tablefield->Type} to {$fieldtype}";
+						$cqueries[] = "ALTER TABLE {$table} CHANGE COLUMN {$tablefield->Field} " . $cfields[strtolower($tablefield->Field)];
+						$for_update[$table.'.'.$tablefield->Field] = "Changed type of {$table}.{$tablefield->Field} from {$tablefield->Type} to {$fieldtype}";
+					}
 				}

 				// Get the default value from the array
--- a/wp-admin/js/customize-controls.js
+++ b/wp-admin/js/customize-controls.js
@@ -3364,6 +3364,16 @@
 			}
 		});

+		// Ensure preview nonce is included with every customized request, to allow post data to be read.
+		$.ajaxPrefilter( function injectPreviewNonce( options ) {
+			if ( ! /wp_customize=on/.test( options.data ) ) {
+				return;
+			}
+			options.data += '&' + $.param({
+				customize_preview_nonce: api.settings.nonce.preview
+			});
+		});
+
 		// Refresh the nonces if the preview sends updated nonces over.
 		api.previewer.bind( 'nonce', function( nonce ) {
 			$.extend( this.nonce, nonce );
--- a/wp-admin/js/customize-controls.min.js
+++ b/wp-admin/js/customize-controls.min.js
--- a/wp-admin/js/updates.js
+++ b/wp-admin/js/updates.js
@@ -46,9 +46,10 @@ window.wp = window.wp || {};
 			connectionType: null
 		},
 		ssh: {
-			publicKey: null,
-			privateKey: null
-		}
+			publicKey:  '',
+			privateKey: ''
+		},
+		fsNonce: ''
 	};

 	/**
@@ -184,6 +185,7 @@ window.wp = window.wp || {};
 			_ajax_nonce:     wp.updates.ajaxNonce,
 			plugin:          plugin,
 			slug:            slug,
+			_fs_nonce:       wp.updates.filesystemCredentials.fsNonce,
 			username:        wp.updates.filesystemCredentials.ftp.username,
 			password:        wp.updates.filesystemCredentials.ftp.password,
 			hostname:        wp.updates.filesystemCredentials.ftp.hostname,
@@ -482,6 +484,7 @@ window.wp = window.wp || {};
 		// File system credentials form submit noop-er / handler.
 		$( '#request-filesystem-credentials-dialog form' ).on( 'submit', function() {
 			// Persist the credentials input by the user for the duration of the page load.
+			wp.updates.filesystemCredentials.fsNonce = $( '#_fs_nonce' ).val();
 			wp.updates.filesystemCredentials.ftp.hostname = $('#hostname').val();
 			wp.updates.filesystemCredentials.ftp.username = $('#username').val();
 			wp.updates.filesystemCredentials.ftp.password = $('#password').val();
--- a/wp-admin/js/updates.min.js
+++ b/wp-admin/js/updates.min.js
--- a/wp-admin/plugins.php
+++ b/wp-admin/plugins.php
@@ -246,6 +246,14 @@ if ( $action ) {
 				exit;
 			}

+			// Bail on all if any paths are invalid.
+			// validate_file() returns truthy for invalid files
+			$invalid_plugin_files = array_filter( $plugins, 'validate_file' );
+			if ( $invalid_plugin_files ) {
+				wp_redirect( self_admin_url("plugins.php?plugin_status=$status&paged=$page&s=$s") );
+				exit;
+			}
+
 			include(ABSPATH . 'wp-admin/update.php');

 			$parent_file = 'plugins.php';
--- a/wp-admin/revision.php
+++ b/wp-admin/revision.php
@@ -63,7 +63,7 @@ default :
 	if ( ! $post = get_post( $revision->post_parent ) )
 		break;

-	if ( ! current_user_can( 'read_post', $revision->ID ) || ! current_user_can( 'read_post', $post->ID ) )
+	if ( ! current_user_can( 'read_post', $revision->ID ) || ! current_user_can( 'edit_post', $revision->post_parent ) )
 		break;

 	// Revisions disabled and we're not looking at an autosave
--- a/wp-admin/update-core.php
+++ b/wp-admin/update-core.php
@@ -253,6 +253,8 @@ function list_plugin_updates() {
 	<tbody class="plugins">
 <?php
 	foreach ( (array) $plugins as $plugin_file => $plugin_data ) {
+		$plugin_data = (object) _get_plugin_data_markup_translate( $plugin_file, (array) $plugin_data, false, true );
+
 		$info = plugins_api( 'plugin_information', array(
 			'slug' => $plugin_data->update->slug,
 			'fields' => array(
--- a/wp-admin/widgets.php
+++ b/wp-admin/widgets.php
@@ -22,6 +22,8 @@ if ( ! current_user_can( 'edit_theme_options' ) ) {

 $widgets_access = get_user_setting( 'widgets_access' );
 if ( isset($_GET['widgets-access']) ) {
+	check_admin_referer( 'widgets-access' );
+
 	$widgets_access = 'on' == $_GET['widgets-access'] ? 'on' : 'off';
 	set_user_setting( 'widgets_access', $widgets_access );
 }
--- a/wp-includes/class-oembed.php
+++ b/wp-includes/class-oembed.php
@@ -284,10 +284,32 @@ class WP_oEmbed {
 	 * @return false|string False on failure, otherwise the UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
 	 */
 	public function get_html( $url, $args = '' ) {
+		/**
+		 * Filters the oEmbed result before any HTTP requests are made.
+		 *
+		 * This allows one to short-circuit the default logic, perhaps by
+		 * replacing it with a routine that is more optimal for your setup.
+		 *
+		 * Passing a non-null value to the filter will effectively short-circuit retrieval,
+		 * returning the passed value instead.
+		 *
+		 * @since 4.5.3
+		 *
+		 * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null.
+		 * @param string      $url    The URL to the content that should be attempted to be embedded.
+		 * @param array       $args   Optional. Arguments, usually passed from a shortcode. Default empty.
+		 */
+		$pre = apply_filters( 'pre_oembed_result', null, $url, $args );
+
+		if ( null !== $pre ) {
+			return $pre;
+		}
+
 		$provider = $this->get_provider( $url, $args );

-		if ( !$provider || false === $data = $this->fetch( $provider, $url, $args ) )
+		if ( ! $provider || false === $data = $this->fetch( $provider, $url, $args ) ) {
 			return false;
+		}

 		/**
 		 * Filter the HTML returned by the oEmbed provider.
--- a/wp-includes/class-phpmailer.php
+++ b/wp-includes/class-phpmailer.php
@@ -31,7 +31,7 @@ class PHPMailer
     * The PHPMailer Version number.
     * @var string
     */
-    public $Version = '5.2.14';
+    public $Version = '5.2.22';

    /**
     * Email priority.
@@ -201,6 +201,9 @@ class PHPMailer
    /**
     * An ID to be used in the Message-ID header.
     * If empty, a unique id will be generated.
+     * You can set your own, but it must be in the format "<id@domain>",
+     * as defined in RFC5322 section 3.6.4 or it will be ignored.
+     * @see https://tools.ietf.org/html/rfc5322#section-3.6.4
     * @var string
     */
    public $MessageID = '';
@@ -285,7 +288,7 @@ class PHPMailer

    /**
     * SMTP auth type.
-     * Options are LOGIN (default), PLAIN, NTLM, CRAM-MD5
+     * Options are CRAM-MD5, LOGIN, PLAIN, attempted in that order if not specified
     * @var string
     */
    public $AuthType = '';
@@ -352,6 +355,7 @@ class PHPMailer
    /**
     * Whether to split multiple to addresses into multiple messages
     * or send them all in one message.
+     * Only supported in `mail` and `sendmail` transports, not in SMTP.
     * @var boolean
     */
    public $SingleTo = false;
@@ -394,7 +398,7 @@ class PHPMailer

    /**
     * DKIM Identity.
-     * Usually the email address used as the source of the email
+     * Usually the email address used as the source of the email.
     * @var string
     */
    public $DKIM_identity = '';
@@ -419,6 +423,13 @@ class PHPMailer
     */
    public $DKIM_private = '';

+    /**
+     * DKIM private key string.
+     * If set, takes precedence over `$DKIM_private`.
+     * @var string
+     */
+    public $DKIM_private_string = '';
+
    /**
     * Callback Action function name.
     *
@@ -446,6 +457,15 @@ class PHPMailer
     */
    public $XMailer = '';

+    /**
+     * Which validator to use by default when validating email addresses.
+     * May be a callable to inject your own validator, but there are several built-in validators.
+     * @see PHPMailer::validateAddress()
+     * @var string|callable
+     * @static
+     */
+    public static $validator = 'auto';
+
    /**
     * An instance of the SMTP sender class.
     * @var SMTP
@@ -634,9 +654,11 @@ class PHPMailer
     * Constructor.
     * @param boolean $exceptions Should we throw external exceptions?
     */
-    public function __construct($exceptions = false)
+    public function __construct($exceptions = null)
    {
-        $this->exceptions = (boolean)$exceptions;
+        if ($exceptions !== null) {
+            $this->exceptions = (boolean)$exceptions;
+        }
    }

    /**
@@ -645,9 +667,7 @@ class PHPMailer
    public function __destruct()
    {
        //Close any open SMTP connection nicely
-        if ($this->Mailer == 'smtp') {
-            $this->smtpClose();
-        }
+        $this->smtpClose();
    }

    /**
@@ -671,14 +691,16 @@ class PHPMailer
        } else {
            $subject = $this->encodeHeader($this->secureHeader($subject));
        }
-        if (ini_get('safe_mode') || !($this->UseSendmailOptions)) {
+
+        //Can't use additional_parameters in safe_mode, calling mail() with null params breaks
+        //@link http://php.net/manual/en/function.mail.php
+        if (ini_get('safe_mode') or !$this->UseSendmailOptions or is_null($params)) {
            $result = @mail($to, $subject, $body, $header);
        } else {
            $result = @mail($to, $subject, $body, $header, $params);
        }
        return $result;
    }
-
    /**
     * Output debugging info via user-defined method.
     * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug).
@@ -713,7 +735,7 @@ class PHPMailer
            case 'echo':
            default:
                //Normalize line breaks
-                $str = preg_replace('/(\r\n|\r|\n)/ms', "\n", $str);
+                $str = preg_replace('/\r\n?/ms', "\n", $str);
                echo gmdate('Y-m-d H:i:s') . "\t" . str_replace(
                    "\n",
                    "\n                   \t                  ",
@@ -850,7 +872,7 @@ class PHPMailer
        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
        if (($pos = strrpos($address, '@')) === false) {
            // At-sign is misssing.
-            $error_message = $this->lang('invalid_address') . $address;
+            $error_message = $this->lang('invalid_address') . " (addAnAddress $kind): $address";
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
@@ -900,7 +922,7 @@ class PHPMailer
            return false;
        }
        if (!$this->validateAddress($address)) {
-            $error_message = $this->lang('invalid_address') . $address;
+            $error_message = $this->lang('invalid_address') . " (addAnAddress $kind): $address";
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
@@ -923,6 +945,61 @@ class PHPMailer
        return false;
    }

+    /**
+     * Parse and validate a string containing one or more RFC822-style comma-separated email addresses
+     * of the form "display name <address>" into an array of name/address pairs.
+     * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available.
+     * Note that quotes in the name part are removed.
+     * @param string $addrstr The address list string
+     * @param bool $useimap Whether to use the IMAP extension to parse the list
+     * @return array
+     * @link http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
+     */
+    public function parseAddresses($addrstr, $useimap = true)
+    {
+        $addresses = array();
+        if ($useimap and function_exists('imap_rfc822_parse_adrlist')) {
+            //Use this built-in parser if it's available
+            $list = imap_rfc822_parse_adrlist($addrstr, '');
+            foreach ($list as $address) {
+                if ($address->host != '.SYNTAX-ERROR.') {
+                    if ($this->validateAddress($address->mailbox . '@' . $address->host)) {
+                        $addresses[] = array(
+                            'name' => (property_exists($address, 'personal') ? $address->personal : ''),
+                            'address' => $address->mailbox . '@' . $address->host
+                        );
+                    }
+                }
+            }
+        } else {
+            //Use this simpler parser
+            $list = explode(',', $addrstr);
+            foreach ($list as $address) {
+                $address = trim($address);
+                //Is there a separate name part?
+                if (strpos($address, '<') === false) {
+                    //No separate name, just use the whole thing
+                    if ($this->validateAddress($address)) {
+                        $addresses[] = array(
+                            'name' => '',
+                            'address' => $address
+                        );
+                    }
+                } else {
+                    list($name, $email) = explode('<', $address);
+                    $email = trim(str_replace('>', '', $email));
+                    if ($this->validateAddress($email)) {
+                        $addresses[] = array(
+                            'name' => trim(str_replace(array('"', "'"), '', $name)),
+                            'address' => $email
+                        );
+                    }
+                }
+            }
+        }
+        return $addresses;
+    }
+
    /**
     * Set the From and FromName properties.
     * @param string $address
@@ -939,7 +1016,7 @@ class PHPMailer
        if (($pos = strrpos($address, '@')) === false or
            (!$this->has8bitChars(substr($address, ++$pos)) or !$this->idnSupported()) and
            !$this->validateAddress($address)) {
-            $error_message = $this->lang('invalid_address') . $address;
+            $error_message = $this->lang('invalid_address') . " (setFrom) $address";
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
@@ -972,19 +1049,30 @@ class PHPMailer
    /**
     * Check that a string looks like an email address.
     * @param string $address The email address to check
-     * @param string $patternselect A selector for the validation pattern to use :
+     * @param string|callable $patternselect A selector for the validation pattern to use :
     * * `auto` Pick best pattern automatically;
     * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0, PHP >= 5.3.2, 5.2.14;
     * * `pcre` Use old PCRE implementation;
     * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL;
     * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements.
     * * `noregex` Don't use a regex: super fast, really dumb.
+     * Alternatively you may pass in a callable to inject your own validator, for example:
+     * PHPMailer::validateAddress('user@example.com', function($address) {
+     *     return (strpos($address, '@') !== false);
+     * });
+     * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator.
     * @return boolean
     * @static
     * @access public
     */
-    public static function validateAddress($address, $patternselect = 'auto')
+    public static function validateAddress($address, $patternselect = null)
    {
+        if (is_null($patternselect)) {
+            $patternselect = self::$validator;
+        }
+        if (is_callable($patternselect)) {
+            return call_user_func($patternselect, $address);
+        }
        //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321
        if (strpos($address, "\n") !== false or strpos($address, "\r") !== false) {
            return false;
@@ -1161,7 +1249,7 @@ class PHPMailer
                }
                $this->$address_kind = $this->punyencodeAddress($this->$address_kind);
                if (!$this->validateAddress($this->$address_kind)) {
-                    $error_message = $this->lang('invalid_address') . $this->$address_kind;
+                    $error_message = $this->lang('invalid_address') . ' (punyEncode) ' . $this->$address_kind;
                    $this->setError($error_message);
                    $this->edebug($error_message);
                    if ($this->exceptions) {
@@ -1172,7 +1260,7 @@ class PHPMailer
            }

            // Set whether the message is multipart/alternative
-            if (!empty($this->AltBody)) {
+            if ($this->alternativeExists()) {
                $this->ContentType = 'multipart/alternative';
            }

@@ -1206,9 +1294,11 @@ class PHPMailer

            // Sign with DKIM if enabled
            if (!empty($this->DKIM_domain)
-                && !empty($this->DKIM_private)
                && !empty($this->DKIM_selector)
-                && file_exists($this->DKIM_private)) {
+                && (!empty($this->DKIM_private_string)
+                   || (!empty($this->DKIM_private) && file_exists($this->DKIM_private))
+                )
+            ) {
                $header_dkim = $this->DKIM_Add(
                    $this->MIMEHeader . $this->mailHeader,
                    $this->encodeHeader($this->secureHeader($this->Subject)),
@@ -1274,19 +1364,24 @@ class PHPMailer
     */
    protected function sendmailSend($header, $body)
    {
-        if ($this->Sender != '') {
+        // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
+        if (!empty($this->Sender) and self::isShellSafe($this->Sender)) {
            if ($this->Mailer == 'qmail') {
-                $sendmail = sprintf('%s -f%s', escapeshellcmd($this->Sendmail), escapeshellarg($this->Sender));
+                $sendmailFmt = '%s -f%s';
            } else {
-                $sendmail = sprintf('%s -oi -f%s -t', escapeshellcmd($this->Sendmail), escapeshellarg($this->Sender));
+                $sendmailFmt = '%s -oi -f%s -t';
            }
        } else {
            if ($this->Mailer == 'qmail') {
-                $sendmail = sprintf('%s', escapeshellcmd($this->Sendmail));
+                $sendmailFmt = '%s';
            } else {
-                $sendmail = sprintf('%s -oi -t', escapeshellcmd($this->Sendmail));
+                $sendmailFmt = '%s -oi -t';
            }
        }
+
+        // TODO: If possible, this should be changed to escapeshellarg.  Needs thorough testing.
+        $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender);
+
        if ($this->SingleTo) {
            foreach ($this->SingleToArray as $toAddr) {
                if (!@$mail = popen($sendmail, 'w')) {
@@ -1332,6 +1427,40 @@ class PHPMailer
        return true;
    }

+    /**
+     * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters.
+     *
+     * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows.
+     * @param string $string The string to be validated
+     * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report
+     * @access protected
+     * @return boolean
+     */
+    protected static function isShellSafe($string)
+    {
+        // Future-proof
+        if (escapeshellcmd($string) !== $string
+            or !in_array(escapeshellarg($string), array("'$string'", "\"$string\""))
+        ) {
+            return false;
+        }
+
+        $length = strlen($string);
+
+        for ($i = 0; $i < $length; $i++) {
+            $c = $string[$i];
+
+            // All other characters have a special meaning in at least one common shell, including = and +.
+            // Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here.
+            // Note that this does permit non-Latin alphanumeric characters based on the current locale.
+            if (!ctype_alnum($c) && strpos('@_-.', $c) === false) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
    /**
     * Send mail using the PHP mail() function.
     * @param string $header The message headers
@@ -1349,17 +1478,20 @@ class PHPMailer
        }
        $to = implode(', ', $toArr);

-        if (empty($this->Sender)) {
-            $params = ' ';
-        } else {
-            $params = sprintf('-f%s', $this->Sender);
+        $params = null;
+        //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
+        if (!empty($this->Sender) and $this->validateAddress($this->Sender)) {
+            // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
+            if (self::isShellSafe($this->Sender)) {
+                $params = sprintf('-f%s', $this->Sender);
+            }
        }
-        if ($this->Sender != '' and !ini_get('safe_mode')) {
+        if (!empty($this->Sender) and !ini_get('safe_mode') and $this->validateAddress($this->Sender)) {
            $old_from = ini_get('sendmail_from');
            ini_set('sendmail_from', $this->Sender);
        }
        $result = false;
-        if ($this->SingleTo && count($toArr) > 1) {
+        if ($this->SingleTo and count($toArr) > 1) {
            foreach ($toArr as $toAddr) {
                $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params);
                $this->doCallback($result, array($toAddr), $this->cc, $this->bcc, $this->Subject, $body, $this->From);
@@ -1409,10 +1541,10 @@ class PHPMailer
        if (!$this->smtpConnect($this->SMTPOptions)) {
            throw new phpmailerException($this->lang('smtp_connect_failed'), self::STOP_CRITICAL);
        }
-        if ('' == $this->Sender) {
-            $smtp_from = $this->From;
-        } else {
+        if (!empty($this->Sender) and $this->validateAddress($this->Sender)) {
            $smtp_from = $this->Sender;
+        } else {
+            $smtp_from = $this->From;
        }
        if (!$this->smtp->mail($smtp_from)) {
            $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError()));
@@ -1466,12 +1598,17 @@ class PHPMailer
     * @throws phpmailerException
     * @return boolean
     */
-    public function smtpConnect($options = array())
+    public function smtpConnect($options = null)
    {
        if (is_null($this->smtp)) {
            $this->smtp = $this->getSMTPInstance();
        }

+        //If no options are provided, use whatever is set in the instance
+        if (is_null($options)) {
+            $options = $this->SMTPOptions;
+        }
+
        // Already connected?
        if ($this->smtp->connected()) {
            return true;
@@ -1541,7 +1678,7 @@ class PHPMailer
                        if (!$this->smtp->startTLS()) {
                            throw new phpmailerException($this->lang('connect_host'));
                        }
-                        // We must resend HELO after tls negotiation
+                        // We must resend EHLO after TLS negotiation
                        $this->smtp->hello($hello);
                    }
                    if ($this->SMTPAuth) {
@@ -1580,7 +1717,7 @@ class PHPMailer
     */
    public function smtpClose()
    {
-        if ($this->smtp !== null) {
+        if (is_a($this->smtp, 'SMTP')) {
            if ($this->smtp->connected()) {
                $this->smtp->quit();
                $this->smtp->close();
@@ -1599,6 +1736,19 @@ class PHPMailer
     */
    public function setLanguage($langcode = 'en', $lang_path = '')
    {
+        // Backwards compatibility for renamed language codes
+        $renamed_langcodes = array(
+            'br' => 'pt_br',
+            'cz' => 'cs',
+            'dk' => 'da',
+            'no' => 'nb',
+            'se' => 'sv',
+        );
+
+        if (isset($renamed_langcodes[$langcode])) {
+            $langcode = $renamed_langcodes[$langcode];
+        }
+
        // Define full set of translatable strings in English
        $PHPMAILER_LANG = array(
            'authenticate' => 'SMTP Error: Could not authenticate.',
@@ -1625,6 +1775,10 @@ class PHPMailer
            // Calculate an absolute path so it can work if CWD is not here
            $lang_path = dirname(__FILE__). DIRECTORY_SEPARATOR . 'language'. DIRECTORY_SEPARATOR;
        }
+        //Validate $langcode
+        if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) {
+            $langcode = 'en';
+        }
        $foundlang = true;
        $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php';
        // There is no English translation file
@@ -1918,7 +2072,9 @@ class PHPMailer
            $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject)));
        }

-        if ($this->MessageID != '') {
+        // Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4
+        // https://tools.ietf.org/html/rfc5322#section-3.6.4
+        if ('' != $this->MessageID and preg_match('/^<.*@.*>$/', $this->MessageID)) {
            $this->lastMessageID = $this->MessageID;
        } else {
            $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname());
@@ -2020,7 +2176,15 @@ class PHPMailer
     */
    public function getSentMIMEMessage()
    {
-        return $this->MIMEHeader . $this->mailHeader . self::CRLF . $this->MIMEBody;
+        return rtrim($this->MIMEHeader . $this->mailHeader, "\n\r") . self::CRLF . self::CRLF . $this->MIMEBody;
+    }
+
+    /**
+     * Create unique ID
+     * @return string
+     */
+    protected function generateId() {
+        return md5(uniqid(time()));
    }

    /**
@@ -2034,7 +2198,7 @@ class PHPMailer
    {
        $body = '';
        //Create unique IDs and preset boundaries
-        $this->uniqueid = md5(uniqid(time()));
+        $this->uniqueid = $this->generateId();
        $this->boundary[1] = 'b1_' . $this->uniqueid;
        $this->boundary[2] = 'b2_' . $this->uniqueid;
        $this->boundary[3] = 'b3_' . $this->uniqueid;
@@ -2050,11 +2214,12 @@ class PHPMailer
        //Can we do a 7-bit downgrade?
        if ($bodyEncoding == '8bit' and !$this->has8bitChars($this->Body)) {
            $bodyEncoding = '7bit';
+            //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit
            $bodyCharSet = 'us-ascii';
        }
-        //If lines are too long, change to quoted-printable transfer encoding
-        if (self::hasLineLongerThanMax($this->Body)) {
-            $this->Encoding = 'quoted-printable';
+        //If lines are too long, and we're not already using an encoding that will shorten them,
+        //change to quoted-printable transfer encoding for the body part only
+        if ('base64' != $this->Encoding and self::hasLineLongerThanMax($this->Body)) {
            $bodyEncoding = 'quoted-printable';
        }

@@ -2063,10 +2228,12 @@ class PHPMailer
        //Can we do a 7-bit downgrade?
        if ($altBodyEncoding == '8bit' and !$this->has8bitChars($this->AltBody)) {
            $altBodyEncoding = '7bit';
+            //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit
            $altBodyCharSet = 'us-ascii';
        }
-        //If lines are too long, change to quoted-printable transfer encoding
-        if (self::hasLineLongerThanMax($this->AltBody)) {
+        //If lines are too long, and we're not already using an encoding that will shorten them,
+        //change to quoted-printable transfer encoding for the alt body part only
+        if ('base64' != $altBodyEncoding and self::hasLineLongerThanMax($this->AltBody)) {
            $altBodyEncoding = 'quoted-printable';
        }
        //Use this as a preamble in all multipart message types
@@ -2169,8 +2336,10 @@ class PHPMailer
                $body .= $this->attachAll('attachment', $this->boundary[1]);
                break;
            default:
-                // catch case 'plain' and case ''
-                $body .= $this->encodeString($this->Body, $bodyEncoding);
+                // Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types
+                //Reset the `Encoding` property in case we changed it for line length reasons
+                $this->Encoding = $bodyEncoding;
+                $body .= $this->encodeString($this->Body, $this->Encoding);
                break;
        }

@@ -2276,8 +2445,7 @@ class PHPMailer

    /**
     * Set the message type.
-     * PHPMailer only supports some preset message types,
-     * not arbitrary MIME structures.
+     * PHPMailer only supports some preset message types, not arbitrary MIME structures.
     * @access protected
     * @return void
     */
@@ -2295,6 +2463,7 @@ class PHPMailer
        }
        $this->message_type = implode('_', $type);
        if ($this->message_type == '') {
+            //The 'plain' message_type refers to the message having a single body element, not that it is plain-text
            $this->message_type = 'plain';
        }
    }
@@ -2324,6 +2493,7 @@ class PHPMailer

    /**
     * Add an attachment from a path on the filesystem.
+     * Never use a user-supplied path to a file!
     * Returns false if the file could not be found or read.
     * @param string $path Path to the attachment.
     * @param string $name Overrides the attachment name.
@@ -2849,6 +3019,7 @@ class PHPMailer
     * displayed inline with the message, not just attached for download.
     * This is used in HTML messages that embed the images
     * the HTML refers to using the $cid value.
+     * Never use a user-supplied path to a file!
     * @param string $path Path to the attachment.
     * @param string $cid Content ID of the attachment; Use this to reference
     *        the content when using an embedded image in HTML.
@@ -3209,21 +3380,29 @@ class PHPMailer
    }

    /**
-     * Create a message from an HTML string.
-     * Automatically makes modifications for inline images and backgrounds
-     * and creates a plain-text version by converting the HTML.
-     * Overwrites any existing values in $this->Body and $this->AltBody
+     * Create a message body from an HTML string.
+     * Automatically inlines images and creates a plain-text version by converting the HTML,
+     * overwriting any existing values in Body and AltBody.
+     * Do not source $message content from user input!
+     * $basedir is prepended when handling relative URLs, e.g. <img src="/images/a.png"> and must not be empty
+     * will look for an image file in $basedir/images/a.png and convert it to inline.
+     * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email)
+     * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly.
     * @access public
     * @param string $message HTML message string
-     * @param string $basedir baseline directory for path
+     * @param string $basedir Absolute path to a base directory to prepend to relative paths to images
     * @param boolean|callable $advanced Whether to use the internal HTML to text converter
     *    or your own custom converter @see PHPMailer::html2text()
-     * @return string $message
+     * @return string $message The transformed message Body
     */
    public function msgHTML($message, $basedir = '', $advanced = false)
    {
        preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images);
        if (array_key_exists(2, $images)) {
+            if (strlen($basedir) > 1 && substr($basedir, -1) != '/') {
+                // Ensure $basedir has a trailing /
+                $basedir .= '/';
+            }
            foreach ($images[2] as $imgindex => $url) {
                // Convert data URIs into embedded images
                if (preg_match('#^data:(image[^;,]*)(;base64)?,#', $url, $match)) {
@@ -3241,18 +3420,24 @@ class PHPMailer
                            $message
                        );
                    }
-                } elseif (substr($url, 0, 4) !== 'cid:' && !preg_match('#^[A-z]+://#', $url)) {
-                    // Do not change urls for absolute images (thanks to corvuscorax)
+                    continue;
+                }
+                if (
+                    // Only process relative URLs if a basedir is provided (i.e. no absolute local paths)
+                    !empty($basedir)
+                    // Ignore URLs containing parent dir traversal (..)
+                    && (strpos($url, '..') === false)
                    // Do not change urls that are already inline images
+                    && substr($url, 0, 4) !== 'cid:'
+                    // Do not change absolute URLs, including anonymous protocol
+                    && !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url)
+                ) {
                    $filename = basename($url);
                    $directory = dirname($url);
                    if ($directory == '.') {
                        $directory = '';
                    }
                    $cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
-                    if (strlen($basedir) > 1 && substr($basedir, -1) != '/') {
-                        $basedir .= '/';
-                    }
                    if (strlen($directory) > 1 && substr($directory, -1) != '/') {
                        $directory .= '/';
                    }
@@ -3277,7 +3462,7 @@ class PHPMailer
        // Convert all message body line breaks to CRLF, makes quoted-printable encoding work much better
        $this->Body = $this->normalizeBreaks($message);
        $this->AltBody = $this->normalizeBreaks($this->html2text($message, $advanced));
-        if (empty($this->AltBody)) {
+        if (!$this->alternativeExists()) {
            $this->AltBody = 'To view this email message, open it in a program that understands HTML!' .
                self::CRLF . self::CRLF;
        }
@@ -3288,7 +3473,7 @@ class PHPMailer
     * Convert an HTML string into plain text.
     * This is used by msgHTML().
     * Note - older versions of this function used a bundled advanced converter
-     * which was been removed for license reasons in #232
+     * which was been removed for license reasons in #232.
     * Example usage:
     * <code>
     * // Use default conversion
@@ -3588,7 +3773,7 @@ class PHPMailer
     * @access public
     * @param string $signHeader
     * @throws phpmailerException
-     * @return string
+     * @return string The DKIM signature value
     */
    public function DKIM_Sign($signHeader)
    {
@@ -3598,15 +3783,35 @@ class PHPMailer
            }
            return '';
        }
-        $privKeyStr = file_get_contents($this->DKIM_private);
-        if ($this->DKIM_passphrase != '') {
+        $privKeyStr = !empty($this->DKIM_private_string) ? $this->DKIM_private_string : file_get_contents($this->DKIM_private);
+        if ('' != $this->DKIM_passphrase) {
            $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
        } else {
-            $privKey = $privKeyStr;
+            $privKey = openssl_pkey_get_private($privKeyStr);
        }
-        if (openssl_sign($signHeader, $signature, $privKey)) {
-            return base64_encode($signature);
+        //Workaround for missing digest algorithms in old PHP & OpenSSL versions
+        //@link http://stackoverflow.com/a/11117338/333340
+        if (version_compare(PHP_VERSION, '5.3.0') >= 0 and
+            in_array('sha256WithRSAEncryption', openssl_get_md_methods(true))) {
+            if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) {
+                openssl_pkey_free($privKey);
+                return base64_encode($signature);
+            }
+        } else {
+            $pinfo = openssl_pkey_get_details($privKey);
+            $hash = hash('sha256', $signHeader);
+            //'Magic' constant for SHA256 from RFC3447
+            //@link https://tools.ietf.org/html/rfc3447#page-43
+            $t = '3031300d060960864801650304020105000420' . $hash;
+            $pslen = $pinfo['bits'] / 8 - (strlen($t) / 2 + 3);
+            $eb = pack('H*', '0001' . str_repeat('FF', $pslen) . '00' . $t);
+
+            if (openssl_private_encrypt($eb, $signature, $privKey, OPENSSL_NO_PADDING)) {
+                openssl_pkey_free($privKey);
+                return base64_encode($signature);
+            }
        }
+        openssl_pkey_free($privKey);
        return '';
    }

@@ -3623,7 +3828,7 @@ class PHPMailer
        foreach ($lines as $key => $line) {
            list($heading, $value) = explode(':', $line, 2);
            $heading = strtolower($heading);
-            $value = preg_replace('/\s+/', ' ', $value); // Compress useless spaces
+            $value = preg_replace('/\s{2,}/', ' ', $value); // Compress useless spaces
            $lines[$key] = $heading . ':' . trim($value); // Don't forget to remove WSP around the value
        }
        $signHeader = implode("\r\n", $lines);
@@ -3661,7 +3866,7 @@ class PHPMailer
     */
    public function DKIM_Add($headers_line, $subject, $body)
    {
-        $DKIMsignatureType = 'rsa-sha1'; // Signature & hash algorithms
+        $DKIMsignatureType = 'rsa-sha256'; // Signature & hash algorithms
        $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body
        $DKIMquery = 'dns/txt'; // Query method
        $DKIMtime = time(); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
@@ -3669,6 +3874,7 @@ class PHPMailer
        $headers = explode($this->LE, $headers_line);
        $from_header = '';
        $to_header = '';
+        $date_header = '';
        $current = '';
        foreach ($headers as $header) {
            if (strpos($header, 'From:') === 0) {
@@ -3677,6 +3883,9 @@ class PHPMailer
            } elseif (strpos($header, 'To:') === 0) {
                $to_header = $header;
                $current = 'to_header';
+            } elseif (strpos($header, 'Date:') === 0) {
+                $date_header = $header;
+                $current = 'date_header';
            } else {
                if (!empty($$current) && strpos($header, ' =?') === 0) {
                    $$current .= $header;
@@ -3687,6 +3896,7 @@ class PHPMailer
        }
        $from = str_replace('|', '=7C', $this->DKIM_QP($from_header));
        $to = str_replace('|', '=7C', $this->DKIM_QP($to_header));
+        $date = str_replace('|', '=7C', $this->DKIM_QP($date_header));
        $subject = str_replace(
            '|',
            '=7C',
@@ -3694,7 +3904,7 @@ class PHPMailer
        ); // Copied header fields (dkim-quoted-printable)
        $body = $this->DKIM_BodyC($body);
        $DKIMlen = strlen($body); // Length of body
-        $DKIMb64 = base64_encode(pack('H*', sha1($body))); // Base64 of packed binary SHA-1 hash of body
+        $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); // Base64 of packed binary SHA-256 hash of body
        if ('' == $this->DKIM_identity) {
            $ident = '';
        } else {
@@ -3707,16 +3917,18 @@ class PHPMailer
            $this->DKIM_selector .
            ";\r\n" .
            "\tt=" . $DKIMtime . '; c=' . $DKIMcanonicalization . ";\r\n" .
-            "\th=From:To:Subject;\r\n" .
+            "\th=From:To:Date:Subject;\r\n" .
            "\td=" . $this->DKIM_domain . ';' . $ident . "\r\n" .
            "\tz=$from\r\n" .
            "\t|$to\r\n" .
+            "\t|$date\r\n" .
            "\t|$subject;\r\n" .
            "\tbh=" . $DKIMb64 . ";\r\n" .
            "\tb=";
        $toSign = $this->DKIM_HeaderC(
            $from_header . "\r\n" .
            $to_header . "\r\n" .
+            $date_header . "\r\n" .
            $subject_header . "\r\n" .
            $dkimhdrs
        );
--- a/wp-includes/class-smtp.php
+++ b/wp-includes/class-smtp.php
@@ -30,7 +30,7 @@ class SMTP
     * The PHPMailer SMTP version number.
     * @var string
     */
-    const VERSION = '5.2.14';
+    const VERSION = '5.2.22';

    /**
     * SMTP line break constant.
@@ -81,7 +81,7 @@ class SMTP
     * @deprecated Use the `VERSION` constant instead
     * @see SMTP::VERSION
     */
-    public $Version = '5.2.14';
+    public $Version = '5.2.22';

    /**
     * SMTP server port number.
@@ -150,6 +150,17 @@ class SMTP
     */
    public $Timelimit = 300;

+	/**
+	 * @var array patterns to extract smtp transaction id from smtp reply
+	 * Only first capture group will be use, use non-capturing group to deal with it
+	 * Extend this class to override this property to fulfil your needs.
+	 */
+	protected $smtp_transaction_id_patterns = array(
+		'exim' => '/[0-9]{3} OK id=(.*)/',
+		'sendmail' => '/[0-9]{3} 2.0.0 (.*) Message/',
+		'postfix' => '/[0-9]{3} 2.0.0 Ok: queued as (.*)/'
+	);
+
    /**
     * The socket for the server connection.
     * @var resource
@@ -206,7 +217,7 @@ class SMTP
        }
        //Avoid clash with built-in function names
        if (!in_array($this->Debugoutput, array('error_log', 'html', 'echo')) and is_callable($this->Debugoutput)) {
-            call_user_func($this->Debugoutput, $str, $this->do_debug);
+            call_user_func($this->Debugoutput, $str, $level);
            return;
        }
        switch ($this->Debugoutput) {
@@ -272,8 +283,8 @@ class SMTP
        $errstr = '';
        if ($streamok) {
            $socket_context = stream_context_create($options);
-            //Suppress errors; connection failures are handled at a higher level
-            $this->smtp_conn = @stream_socket_client(
+            set_error_handler(array($this, 'errorHandler'));
+            $this->smtp_conn = stream_socket_client(
                $host . ":" . $port,
                $errno,
                $errstr,
@@ -281,12 +292,14 @@ class SMTP
                STREAM_CLIENT_CONNECT,
                $socket_context
            );
+            restore_error_handler();
        } else {
            //Fall back to fsockopen which should work in more places, but is missing some features
            $this->edebug(
                "Connection: stream_socket_client not available, falling back to fsockopen",
                self::DEBUG_CONNECTION
            );
+            set_error_handler(array($this, 'errorHandler'));
            $this->smtp_conn = fsockopen(
                $host,
                $port,
@@ -294,6 +307,7 @@ class SMTP
                $errstr,
                $timeout
            );
+            restore_error_handler();
        }
        // Verify we connected properly
        if (!is_resource($this->smtp_conn)) {
@@ -336,11 +350,22 @@ class SMTP
        if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) {
            return false;
        }
+
+        //Allow the best TLS version(s) we can
+        $crypto_method = STREAM_CRYPTO_METHOD_TLS_CLIENT;
+
+        //PHP 5.6.7 dropped inclusion of TLS 1.1 and 1.2 in STREAM_CRYPTO_METHOD_TLS_CLIENT
+        //so add them back in manually if we can
+        if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) {
+            $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT;
+            $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT;
+        }
+
        // Begin encrypted connection
        if (!stream_socket_enable_crypto(
            $this->smtp_conn,
            true,
-            STREAM_CRYPTO_METHOD_TLS_CLIENT
+            $crypto_method
        )) {
            return false;
        }
@@ -353,7 +378,7 @@ class SMTP
     * @see hello()
     * @param string $username The user name
     * @param string $password The password
-     * @param string $authtype The auth type (PLAIN, LOGIN, NTLM, CRAM-MD5, XOAUTH2)
+     * @param string $authtype The auth type (PLAIN, LOGIN, CRAM-MD5)
     * @param string $realm The auth realm for NTLM
     * @param string $workstation The auth workstation for NTLM
     * @param null|OAuth $OAuth An optional OAuth instance (@see PHPMailerOAuth)
@@ -389,7 +414,7 @@ class SMTP
            );

            if (empty($authtype)) {
-                foreach (array('LOGIN', 'CRAM-MD5', 'PLAIN') as $method) {
+                foreach (array('CRAM-MD5', 'LOGIN', 'PLAIN') as $method) {
                    if (in_array($method, $this->server_caps['AUTH'])) {
                        $authtype = $method;
                        break;
@@ -673,7 +698,7 @@ class SMTP
    protected function parseHelloFields($type)
    {
        $this->server_caps = array();
-        $lines = explode("\n", $this->last_reply);
+        $lines = explode("\n", $this->helo_rply);

        foreach ($lines as $n => $s) {
            //First 4 chars contain response code followed by - or space
@@ -1115,4 +1140,47 @@ class SMTP
    {
        return $this->Timeout;
    }
+
+    /**
+     * Reports an error number and string.
+     * @param integer $errno The error number returned by PHP.
+     * @param string $errmsg The error message returned by PHP.
+     */
+    protected function errorHandler($errno, $errmsg)
+    {
+        $notice = 'Connection: Failed to connect to server.';
+        $this->setError(
+            $notice,
+            $errno,
+            $errmsg
+        );
+        $this->edebug(
+            $notice . ' Error number ' . $errno . '. "Error notice: ' . $errmsg,
+            self::DEBUG_CONNECTION
+        );
+    }
+
+	/**
+	 * Will return the ID of the last smtp transaction based on a list of patterns provided
+	 * in SMTP::$smtp_transaction_id_patterns.
+	 * If no reply has been received yet, it will return null.
+	 * If no pattern has been matched, it will return false.
+	 * @return bool|null|string
+	 */
+	public function getLastTransactionID()
+	{
+		$reply = $this->getLastReply();
+
+		if (empty($reply)) {
+			return null;
+		}
+
+		foreach($this->smtp_transaction_id_patterns as $smtp_transaction_id_pattern) {
+			if(preg_match($smtp_transaction_id_pattern, $reply, $matches)) {
+				return $matches[1];
+			}
+		}
+
+		return false;
+    }
 }
--- a/wp-includes/class-wp-customize-manager.php
+++ b/wp-includes/class-wp-customize-manager.php
@@ -364,6 +364,24 @@ final class WP_Customize_Manager {

 		show_admin_bar( false );

+		/*
+		 * Clear incoming post data if the user lacks a CSRF token (nonce). Note that the customizer
+		 * application will inject the customize_preview_nonce query parameter into all Ajax requests.
+		 * For similar behavior elsewhere in WordPress, see rest_cookie_check_errors() which logs out
+		 * a user when a valid nonce isn't present.
+		 */
+		$has_post_data_nonce = (
+			check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'nonce', false )
+			||
+			check_ajax_referer( 'save-customize_' . $this->get_stylesheet(), 'nonce', false )
+			||
+			check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'customize_preview_nonce', false )
+		);
+		if ( ! $has_post_data_nonce ) {
+			unset( $_POST['customized'] );
+			unset( $_REQUEST['customized'] );
+		}
+
 		if ( ! current_user_can( 'customize' ) ) {
 			$this->wp_die( -1, __( 'You are not allowed to customize the appearance of this site.' ) );
 		}
@@ -1489,6 +1507,7 @@ final class WP_Customize_Manager {
 	 * @param string $preview_url URL to be previewed.
 	 */
 	public function set_preview_url( $preview_url ) {
+		$preview_url = esc_url_raw( $preview_url );
 		$this->preview_url = wp_validate_redirect( $preview_url, home_url( '/' ) );
 	}

@@ -1520,6 +1539,7 @@ final class WP_Customize_Manager {
 	 * @param string $return_url URL for return link.
 	 */
 	public function set_return_url( $return_url ) {
+		$return_url = esc_url_raw( $return_url );
 		$return_url = remove_query_arg( wp_removable_query_args(), $return_url );
 		$return_url = wp_validate_redirect( $return_url );
 		$this->return_url = $return_url;
--- a/wp-includes/class-wp-theme.php
+++ b/wp-includes/class-wp-theme.php
@@ -709,8 +709,9 @@ final class WP_Theme implements ArrayAccess {
 	private function markup_header( $header, $value, $translate ) {
 		switch ( $header ) {
 			case 'Name' :
-				if ( empty( $value ) )
-					$value = $this->get_stylesheet();
+				if ( empty( $value ) ) {
+					$value = esc_html( $this->get_stylesheet() );
+				}
 				break;
 			case 'Description' :
 				$value = wptexturize( $value );
--- a/wp-includes/class-wp-xmlrpc-server.php
+++ b/wp-includes/class-wp-xmlrpc-server.php
@@ -366,6 +366,11 @@ class wp_xmlrpc_server extends IXR_Server {
 			if ( isset($meta['id']) ) {
 				$meta['id'] = (int) $meta['id'];
 				$pmeta = get_metadata_by_mid( 'post', $meta['id'] );
+
+				if ( ! $pmeta || $pmeta->post_id != $post_id ) {
+					continue;
+				}
+
 				if ( isset($meta['key']) ) {
 					$meta['key'] = wp_unslash( $meta['key'] );
 					if ( $meta['key'] !== $pmeta->meta_key )
@@ -1276,10 +1281,31 @@ class wp_xmlrpc_server extends IXR_Server {
 	 * @return IXR_Error|string
 	 */
 	protected function _insert_post( $user, $content_struct ) {
-		$defaults = array( 'post_status' => 'draft', 'post_type' => 'post', 'post_author' => 0,
-			'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );
+		$defaults = array(
+			'post_status'    => 'draft',
+			'post_type'      => 'post',
+			'post_author'    => null,
+			'post_password'  => null,
+			'post_excerpt'   => null,
+			'post_content'   => null,
+			'post_title'     => null,
+			'post_date'      => null,
+			'post_date_gmt'  => null,
+			'post_format'    => null,
+			'post_name'      => null,
+			'post_thumbnail' => null,
+			'post_parent'    => null,
+			'ping_status'    => null,
+			'comment_status' => null,
+			'custom_fields'  => null,
+			'terms_names'    => null,
+			'terms'          => null,
+			'sticky'         => null,
+			'enclosure'      => null,
+			'ID'             => null,
+		);

-		$post_data = wp_parse_args( $content_struct, $defaults );
+		$post_data = wp_parse_args( array_intersect_key( $content_struct, $defaults ), $defaults );

 		$post_type = get_post_type_object( $post_data['post_type'] );
 		if ( ! $post_type )
@@ -1463,9 +1489,6 @@ class wp_xmlrpc_server extends IXR_Server {

 			$post_data['tax_input'] = $terms;
 			unset( $post_data['terms'], $post_data['terms_names'] );
-		} else {
-			// Do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'.
-			unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
 		}

 		if ( isset( $post_data['post_format'] ) ) {
--- a/wp-includes/default-filters.php
+++ b/wp-includes/default-filters.php
@@ -473,5 +473,6 @@ add_filter( 'the_excerpt_embed',      'wp_embed_excerpt_attachment'           );

 add_filter( 'oembed_dataparse',       'wp_filter_oembed_result',        10, 3 );
 add_filter( 'oembed_response_data',   'get_oembed_response_data_rich',  10, 4 );
+add_filter( 'pre_oembed_result',      'wp_filter_pre_oembed_result',    10, 3 );

 unset( $filter, $action );
--- a/wp-includes/embed.php
+++ b/wp-includes/embed.php
@@ -251,7 +251,7 @@ function wp_embed_handler_googlevideo( $matches, $attr, $url, $rawattr ) {
 */
 function wp_embed_handler_youtube( $matches, $attr, $url, $rawattr ) {
 	global $wp_embed;
-	$embed = $wp_embed->autoembed( "https://youtube.com/watch?v={$matches[2]}" );
+	$embed = $wp_embed->autoembed( sprintf( "https://youtube.com/watch?v=%s", urlencode( $matches[2] ) ) );

 	/**
 	 * Filter the YoutTube embed output.
@@ -1045,3 +1045,39 @@ function print_embed_sharing_dialog() {
 	</div>
 	<?php
 }
+
+/**
+ * Filters the oEmbed result before any HTTP requests are made.
+ *
+ * If the URL belongs to the current site, the result is fetched directly instead of
+ * going through the oEmbed discovery process.
+ *
+ * @since 4.5.3
+ *
+ * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null.
+ * @param string      $url    The URL that should be inspected for discovery `<link>` tags.
+ * @param array       $args   oEmbed remote get arguments.
+ * @return null|string The UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
+ *                     Null if the URL does not belong to the current site.
+ */
+function wp_filter_pre_oembed_result( $result, $url, $args ) {
+	$post_id = url_to_postid( $url );
+
+	/** This filter is documented in wp-includes/class-wp-oembed-controller.php */
+	$post_id = apply_filters( 'oembed_request_post_id', $post_id, $url );
+
+	if ( ! $post_id ) {
+		return $result;
+	}
+
+	$width = isset( $args['width'] ) ? $args['width'] : 0;
+
+	$data = get_oembed_response_data( $post_id, $width );
+	$data = _wp_oembed_get_object()->data2html( (object) $data, $url );
+
+	if ( ! $data ) {
+		return $result;
+	}
+
+	return $data;
+}
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -1364,7 +1364,8 @@ function remove_accents( $string ) {
 * operating systems and special characters requiring special escaping
 * to manipulate at the command line. Replaces spaces and consecutive
 * dashes with a single dash. Trims period, dash and underscore from beginning
- * and end of filename.
+ * and end of filename. It is not guaranteed that this function will return a
+ * filename that is allowed to be uploaded.
 *
 * @since 2.1.0
 *
@@ -1389,6 +1390,14 @@ function sanitize_file_name( $filename ) {
 	$filename = preg_replace( '/[\r\n\t -]+/', '-', $filename );
 	$filename = trim( $filename, '.-_' );

+	if ( false === strpos( $filename, '.' ) ) {
+		$mime_types = wp_get_mime_types();
+		$filetype = wp_check_filetype( 'test.' . $filename, $mime_types );
+		if ( $filetype['ext'] === $filename ) {
+			$filename = 'unnamed-file.' . $filetype['ext'];
+		}
+	}
+
 	// Split the filename into a base and extension[s]
 	$parts = explode('.', $filename);

--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -2161,7 +2161,7 @@ function wp_check_filetype( $filename, $mimes = null ) {
 * If it's determined that the extension does not match the file's real type,
 * then the "proper_filename" value will be set with a proper filename and extension.
 *
- * Currently this function only supports validating images known to getimagesize().
+ * Currently this function only supports renaming images validated via wp_get_image_mime().
 *
 * @since 3.0.0
 *
@@ -2185,14 +2185,15 @@ function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
 		return compact( 'ext', 'type', 'proper_filename' );
 	}

-	// We're able to validate images using GD
-	if ( $type && 0 === strpos( $type, 'image/' ) && function_exists('getimagesize') ) {
+	// Validate image types.
+	if ( $type && 0 === strpos( $type, 'image/' ) ) {

 		// Attempt to figure out what type of image it actually is
-		$imgstats = @getimagesize( $file );
+		$real_mime = wp_get_image_mime( $file );

-		// If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME
-		if ( !empty($imgstats['mime']) && $imgstats['mime'] != $type ) {
+		if ( ! $real_mime ) {
+			$type = $ext = false;
+		} elseif ( $real_mime != $type ) {
 			/**
 			 * Filter the list mapping image mime types to their respective extensions.
 			 *
@@ -2209,10 +2210,10 @@ function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
 			) );

 			// Replace whatever is after the last period in the filename with the correct extension
-			if ( ! empty( $mime_to_ext[ $imgstats['mime'] ] ) ) {
+			if ( ! empty( $mime_to_ext[ $real_mime ] ) ) {
 				$filename_parts = explode( '.', $filename );
 				array_pop( $filename_parts );
-				$filename_parts[] = $mime_to_ext[ $imgstats['mime'] ];
+				$filename_parts[] = $mime_to_ext[ $real_mime ];
 				$new_filename = implode( '.', $filename_parts );

 				if ( $new_filename != $filename ) {
@@ -2222,8 +2223,20 @@ function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
 				$wp_filetype = wp_check_filetype( $new_filename, $mimes );
 				$ext = $wp_filetype['ext'];
 				$type = $wp_filetype['type'];
+			} else {
+				$type = $ext = false;
 			}
 		}
+	} elseif ( function_exists( 'finfo_file' ) ) {
+		// Use finfo_file if available to validate non-image files.
+		$finfo = finfo_open( FILEINFO_MIME_TYPE );
+		$real_mime = finfo_file( $finfo, $file );
+		finfo_close( $finfo );
+
+		// If the extension does not match the file's real type, return false.
+		if ( $real_mime !== $type ) {
+			$type = $ext = false;
+		}
 	}

 	/**
@@ -2241,6 +2254,38 @@ function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
 	return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes );
 }

+/**
+ * Returns the real mime type of an image file.
+ *
+ * This depends on exif_imagetype() or getimagesize() to determine real mime types.
+ *
+ * @since 4.7.1
+ *
+ * @param string $file Full path to the file.
+ * @return string|false The actual mime type or false if the type cannot be determined.
+ */
+function wp_get_image_mime( $file ) {
+	/*
+	 * Use exif_imagetype() to check the mimetype if available or fall back to
+	 * getimagesize() if exif isn't avaialbe. If either function throws an Exception
+	 * we assume the file could not be validated.
+	 */
+	try {
+		if ( is_callable( 'exif_imagetype' ) ) {
+			$mime = image_type_to_mime_type( exif_imagetype( $file ) );
+		} elseif ( function_exists( 'getimagesize' ) ) {
+			$imagesize = getimagesize( $file );
+			$mime = ( isset( $imagesize['mime'] ) ) ? $imagesize['mime'] : false;
+		} else {
+			$mime = false;
+		}
+	} catch ( Exception $e ) {
+		$mime = false;
+	}
+
+	return $mime;
+}
+
 /**
 * Retrieve list of mime types and file extensions.
 *
--- a/wp-includes/js/plupload/handlers.js
+++ b/wp-includes/js/plupload/handlers.js
@@ -328,15 +328,24 @@ function uploadError(fileObj, errorCode, message, uploader) {
 	}
 }

-function uploadSizeError( up, file, over100mb ) {
-	var message;
+function uploadSizeError( up, file ) {
+	var message, errorDiv;

-	if ( over100mb )
-		message = pluploadL10n.big_upload_queued.replace('%s', file.name) + ' ' + pluploadL10n.big_upload_failed.replace('%1$s', '<a class="uploader-html" href="#">').replace('%2$s', '</a>');
-	else
-		message = pluploadL10n.file_exceeds_size_limit.replace('%s', file.name);
+	message = pluploadL10n.file_exceeds_size_limit.replace('%s', file.name);

-	jQuery('#media-items').append('<div id="media-item-' + file.id + '" class="media-item error"><p>' + message + '</p></div>');
+	// Construct the error div.
+	errorDiv = jQuery( '<div />' )
+		.attr( {
+			'id':    'media-item-' + file.id,
+			'class': 'media-item error'
+		} )
+		.append(
+			jQuery( '<p />' )
+				.text( message )
+		);
+
+	// Append the error.
+	jQuery('#media-items').append( errorDiv );
 	up.removeFile(file);
 }

--- a/wp-includes/js/plupload/handlers.min.js
+++ b/wp-includes/js/plupload/handlers.min.js
--- a/wp-includes/ms-functions.php
+++ b/wp-includes/ms-functions.php
@@ -666,7 +666,7 @@ function wpmu_validate_blog_signup( $blogname, $blog_title, $user = '' ) {
 function wpmu_signup_blog( $domain, $path, $title, $user, $user_email, $meta = array() )  {
 	global $wpdb;

-	$key = substr( md5( time() . rand() . $domain ), 0, 16 );
+	$key = substr( md5( time() . wp_rand() . $domain ), 0, 16 );
 	$meta = serialize($meta);

 	$wpdb->insert( $wpdb->signups, array(
@@ -716,7 +716,7 @@ function wpmu_signup_user( $user, $user_email, $meta = array() ) {
 	// Format data
 	$user = preg_replace( '/\s+/', '', sanitize_user( $user, true ) );
 	$user_email = sanitize_email( $user_email );
-	$key = substr( md5( time() . rand() . $user_email ), 0, 16 );
+	$key = substr( md5( time() . wp_rand() . $user_email ), 0, 16 );
 	$meta = serialize($meta);

 	$wpdb->insert( $wpdb->signups, array(
--- a/wp-includes/pluggable.php
+++ b/wp-includes/pluggable.php
@@ -1041,18 +1041,14 @@ function auth_redirect() {
 		}
 	}

-	if ( is_user_admin() ) {
-		$scheme = 'logged_in';
-	} else {
-		/**
-		 * Filter the authentication redirect scheme.
-		 *
-		 * @since 2.9.0
-		 *
-		 * @param string $scheme Authentication redirect scheme. Default empty.
-		 */
-		$scheme = apply_filters( 'auth_redirect_scheme', '' );
-	}
+	/**
+	 * Filters the authentication redirect scheme.
+	 *
+	 * @since 2.9.0
+	 *
+	 * @param string $scheme Authentication redirect scheme. Default empty.
+	 */
+	$scheme = apply_filters( 'auth_redirect_scheme', '' );

 	if ( $user_id = wp_validate_auth_cookie( '',  $scheme) ) {
 		/**
@@ -1325,7 +1321,7 @@ if ( !function_exists('wp_validate_redirect') ) :
 * @return string redirect-sanitized URL
 **/
 function wp_validate_redirect($location, $default = '') {
-	$location = trim( $location );
+	$location = trim( $location, " \t\n\r\0\x08\x0B" );
 	// browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'
 	if ( substr($location, 0, 2) == '//' )
 		$location = 'http:' . $location;
--- a/wp-includes/post-template.php
+++ b/wp-includes/post-template.php
@@ -1447,7 +1447,7 @@ function wp_get_attachment_link( $id = 0, $size = 'thumbnail', $permalink = fals
 	 * @param bool         $icon      Whether to include an icon. Default false.
 	 * @param string|bool  $text      If string, will be link text. Default false.
 	 */
-	return apply_filters( 'wp_get_attachment_link', "<a href='$url'>$link_text</a>", $id, $size, $permalink, $icon, $text );
+	return apply_filters( 'wp_get_attachment_link', "<a href='" . esc_url( $url ) . "'>$link_text</a>", $id, $size, $permalink, $icon, $text );
 }

 /**
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -3065,14 +3065,15 @@ class WP_Query {

 		if ( 'any' == $post_type ) {
 			$in_search_post_types = get_post_types( array('exclude_from_search' => false) );
-			if ( empty( $in_search_post_types ) )
+			if ( empty( $in_search_post_types ) ) {
 				$where .= ' AND 1=0 ';
-			else
-				$where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')";
+			} else {
+				$where .= " AND {$wpdb->posts}.post_type IN ('" . join( "', '", array_map( 'esc_sql', $in_search_post_types ) ) . "')";
+			}
 		} elseif ( !empty( $post_type ) && is_array( $post_type ) ) {
-			$where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $post_type) . "')";
+			$where .= " AND {$wpdb->posts}.post_type IN ('" . join("', '", esc_sql( $post_type ) ) . "')";
 		} elseif ( ! empty( $post_type ) ) {
-			$where .= " AND $wpdb->posts.post_type = '$post_type'";
+			$where .= $wpdb->prepare( " AND {$wpdb->posts}.post_type = %s", $post_type );
 			$post_type_object = get_post_type_object ( $post_type );
 		} elseif ( $this->is_attachment ) {
 			$where .= " AND $wpdb->posts.post_type = 'attachment'";
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
 *
 * @global string $wp_version
 */
-$wp_version = '4.4.3';
+$wp_version = '4.4.10';

 /**
 * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
--- a/wp-mail.php
+++ b/wp-mail.php
@@ -14,6 +14,12 @@ require(dirname(__FILE__) . '/wp-load.php');
 if ( ! apply_filters( 'enable_post_by_email_configuration', true ) )
 	wp_die( __( 'This action has been disabled by the administrator.' ) );

+$mailserver_url = get_option( 'mailserver_url' );
+
+if ( 'mail.example.com' === $mailserver_url || empty( $mailserver_url ) ) {
+	wp_die( __( 'This action has been disabled by the administrator.' ), 403 );
+}
+
 /**
 * Fires to allow a plugin to do a complete takeover of Post by Email.
 *
Author	SHA1	Message	Date
Aaron Campbell	2c3e046e7e	Tag 4.4.10 Built from https://develop.svn.wordpress.org/tags/4.4.10@40762 git-svn-id: http://core.svn.wordpress.org/tags/4.4.10@40620 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 22:37:09 +00:00
Aaron Campbell	13db27bb7b	Bump 4.7 branch to version 4.4.10. Built from https://develop.svn.wordpress.org/branches/4.4@40751 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40609 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 21:51:30 +00:00
Pascal Birchler	9f7f4e5848	Media: Simplify upload error message construction. Merges [40736] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40740 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40598 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 18:03:01 +00:00
Aaron Campbell	3ef577baad	Add nonce for updating file system credentials. Merges [40723] to 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40727 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40585 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 14:55:30 +00:00
Dominik Schilling	db7b82e90a	Customize: Ignore invalid customization sessions. Merge of [40704] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40708 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40571 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 12:17:32 +00:00
Pascal Birchler	3ad4757088	Adjust post meta checks Merges [40692] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40696 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40559 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 08:51:31 +00:00
Pascal Birchler	ad081ea634	Whitelist post arguments in XML-RPC Merges [40677] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40681 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40544 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-05-16 08:21:01 +00:00
Pascal Birchler	96a0557865	Bump 4.4 branch to version 4.4.9. Built from https://develop.svn.wordpress.org/branches/4.4@40490 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40366 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-04-20 16:24:32 +00:00
Pascal Birchler	63d7638596	Fix broken audio/video functions when sanitizing ID3 data This fixes a bug where running `wp_kses_post_deep()` on all the ID3 tag data corrupted blob data. See #40075, #40085. Merges [40400] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40463 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40339 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-04-17 13:17:31 +00:00
James Nylen	b96b3f4d38	Bump 4.4 branch to version 4.4.8. Built from https://develop.svn.wordpress.org/branches/4.4@40205 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40144 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-03-06 16:23:31 +00:00
John Blackbourn	75dc2799cc	Press This: Verify intent before fetching in-page resources using Press This. Props vortfu Merges [40195] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40199 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40138 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-03-06 14:02:34 +00:00
Aaron Campbell	442a4f4936	Strip control characters before validating redirect. Merges [40183] to 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40187 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40126 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-03-06 13:43:31 +00:00
Aaron Campbell	2235a5eae7	Plugins: Add file check to plugin deletions. Merges [40169] to 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40173 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40112 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-03-06 13:01:30 +00:00
Dominik Schilling	3f478808ae	Embeds: URL encode YouTube video IDs for broader compatibility. Merge of [40160] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40164 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40103 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-03-06 12:06:34 +00:00
Jeremy Felt	b1c0510af3	Validate video and audio metadata. Merge of [40148] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@40152 git-svn-id: http://core.svn.wordpress.org/branches/4.4@40091 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-03-06 08:07:32 +00:00
Aaron Campbell	df7d68c218	Bump 4.4 branch to version 4.4.7. Built from https://develop.svn.wordpress.org/branches/4.4@39999 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39936 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-26 18:23:31 +00:00
John Blackbourn	e481987c51	Posts, Post Types: When using Excerpt mode on the Posts list table, ensure the excerpt output matches what was manually entered into the Excerpt field. Merges [39956] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39980 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39917 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-26 14:15:28 +00:00
Dominik Schilling	233a0f8d9b	Press This: Do not show Categories & Tags UI for users who cannot assign terms to posts anyways. Merge of [39968] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39973 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39910 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-26 14:12:33 +00:00
Dominik Schilling	bda00ecf73	Query: Ensure that queries work correctly with post type names with special characters. Merge of [39952] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39959 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39896 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-26 13:51:03 +00:00
Aaron Campbell	7fcfc68c0b	Bump 4.4 branch to version 4.4.6. Built from https://develop.svn.wordpress.org/branches/4.4@39863 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39800 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 16:56:29 +00:00
Joe McGill	af0a3c59d1	Media: Fix exif_imagetype check in wp_get_image_mime This is a follow up to [39831]. Merges [39850] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39854 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39791 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 16:42:31 +00:00
Joe McGill	47bc8e98bd	Media: Improve image filetype checking. This adds a new function `wp_get_image_mime()` which is used by `wp_check_filetype_and_ext()` to validate image files using `exif_imagetype()` if available instead of `getimagesize()`. `getimagesize()` is less performant than `exif_imagetype()` and is dependent on GD. If `exif_imagetype()` is not available, it falls back to `getimagesize()` as before. If `wp_check_filetype_and_ext()` can't validate the filetype, we now return `false` for ext/MIME values. Merges [39831] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39835 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39773 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 13:16:32 +00:00
Dominik Schilling	2f90c2af25	Updates: Translate plugin data on the Updates screen. Merge of [39808] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39823 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39761 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 11:41:31 +00:00
Dominik Schilling	26c8103030	Themes: Fix markup for theme name fallbacks. Merge of [39807] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39812 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39750 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 11:10:35 +00:00
Jeremy Felt	e6a894dc68	Multisite: Use `wp_rand()` in signup key creation. Merges [39795] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39799 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39737 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 05:34:02 +00:00
Dion Hulse	2fb6c7ae35	Update PHPMailer to 5.2.22. The full list of changes is available here: https://github.com/PHPMailer/PHPMailer/compare/v5.2.21...v5.2.22 Merges [39759] to the 4.4 branch. Fixes #37210 for 4.4. Built from https://develop.svn.wordpress.org/branches/4.4@39787 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39725 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 05:24:00 +00:00
Jeremy Felt	1c2df81640	Mail: Disable wp-mail.php when `mailserver_url` is mail.example.com. Merges [39772] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39776 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39714 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 05:18:30 +00:00
Aaron Campbell	e7806a428d	Add nonce for widget accessibility mode. Props vortfu. See #23328. Merges [39760] to 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@39764 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39702 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-11 01:45:31 +00:00
Dion Hulse	891d7effb0	Mail: Upgrade PHPMailer to 5.2.21. Merges [39645] to the 4.4 branch. See #37210. Built from https://develop.svn.wordpress.org/branches/4.4@39724 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39664 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-06 22:05:06 +00:00
Joe McGill	2e2570f669	Media: Improved media titles when created from filename. Preserves spaces and generally creates more accurate, cleaner titles from filenames of uploaded media. Merge of [38615] to the 4.4 branch. Fixes #37989. Built from https://develop.svn.wordpress.org/branches/4.4@39712 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39652 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-06 22:00:06 +00:00
Dion Hulse	998d343b2d	General: Update copyright year to 2017 in license.txt. Props Nikschavan. Merges [39659] to the 4.4 branch. Fixes #39433. Built from https://develop.svn.wordpress.org/branches/4.4@39700 git-svn-id: http://core.svn.wordpress.org/branches/4.4@39640 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2017-01-05 08:40:32 +00:00
Jeremy Felt	6f2d676f76	Bump 4.4 branch to 4.4.5. Built from https://develop.svn.wordpress.org/branches/4.4@38551 git-svn-id: http://core.svn.wordpress.org/branches/4.4@38494 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-09-07 14:58:58 +00:00
Jeremy Felt	b8e218019a	Media: Sanitize upload filename. Merge of [38538] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@38541 git-svn-id: http://core.svn.wordpress.org/branches/4.4@38484 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-09-07 13:58:28 +00:00
Pascal Birchler	48dad74eb6	Upgrade/Install: Sanitize file name in `File_Upload_Upgrader`. Merge of [38524] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@38527 git-svn-id: http://core.svn.wordpress.org/branches/4.4@38468 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-09-06 17:49:40 +00:00
Gary Pendergast	c9fb1436ed	Database: `dbDelta()` will no longer try to downgrade the size of `TEXT` and `BLOB` columns. When upgrading to `utf8mb4`, `TEXT` fields will be upgraded to `MEDIUMTEXT` (and likewise for all other `TEXT` and `BLOB` fields). This is to allow for the additional space requirements of `utf8mb4`. On the subsequent upgrade, `dbDelta()` would try and downgrade the fields to their original size again. At best, this it a waste of time, at worst, this could truncate any data larger than the original size. There's no harm in leaving them at their new size, so let's do that. This also fixes a typo in the `dbDelta()` tests. Merge of [37525] to the 4.4 branch. Partial merge of [36552] to the 4.4 branch. See #36748. Built from https://develop.svn.wordpress.org/branches/4.4@37936 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37877 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-07-01 07:00:50 +00:00
Gary Pendergast	1d21012923	The 4.4 branch is now 4.4.5-alpha. Built from https://develop.svn.wordpress.org/branches/4.4@37935 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37876 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-07-01 06:22:28 +00:00
Boone Gorges	74ef49671f	Bump 4.4 branch to 4.4.4. Built from https://develop.svn.wordpress.org/branches/4.4@37829 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37794 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 16:21:26 +00:00
Joe McGill	f68837fd6f	Media: Improve handling of extensionless filenames. Merge of [37756] to the 4.4 branch. See #37111. Built from https://develop.svn.wordpress.org/branches/4.4@37810 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37775 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:53:31 +00:00
Nikolay Bachiyski	bf3b6b800d	Admin: escape URL-encoded permalinks Merge of [37801] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@37807 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37772 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:51:29 +00:00
Pascal Birchler	0a517e47ec	Embeds: Improve performance when embedding a post from the current site. When the post being embedded is from the same site, there's no reason to do an HTTP request for it. The data can be fetched directly using `get_oembed_response_data()`. Merge of [37708], [37710] and [37729] to the 4.4 branch. Fixes #36767. Built from https://develop.svn.wordpress.org/branches/4.4@37798 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37763 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:42:29 +00:00
Rachel Baker	2a00e5a736	Revisions: Change the capability needed to view revision diffs to `edit_post`. Merge of [37779] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@37796 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37761 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:32:27 +00:00
Nikolay Bachiyski	e22ceae1b7	Admin: Escape attachment name in case it contains special characters Merge of [37774] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@37785 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37750 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:24:27 +00:00
Dominik Schilling	30bb01b2e4	Customize: Make sure that preview and return URLs are URLs. Merge of [37527] to the 4.4 branch. Built from https://develop.svn.wordpress.org/branches/4.4@37769 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37734 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:18:30 +00:00
Boone Gorges	7f84cb69ea	Taxonomy: More specific cap check when processing category data on post save. Ports [37691] to the 4.4 branch. Props dlh. Fixes #36379. Built from https://develop.svn.wordpress.org/branches/4.4@37767 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37732 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:16:28 +00:00
Jeremy Felt	a0f643da35	Admin: Allow for the consistent filtering of `auth_redirect_scheme` Merge of [37651] to the 4.4 branch. See #37047. Built from https://develop.svn.wordpress.org/branches/4.4@37758 git-svn-id: http://core.svn.wordpress.org/branches/4.4@37723 1a063a9b-81f0-0310-95a4-ce76da25c4cd	2016-06-21 14:11:28 +00:00