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Fix for URL sanitization that can lead to cross-site scripting (XSS) …
…attacks.

Props irsdl, sstoqnov, whyisjake.
Built from https://develop.svn.wordpress.org/trunk@45997


git-svn-id: http://core.svn.wordpress.org/trunk@45808 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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desrosj committed Sep 4, 2019
1 parent 62b22b8 commit 30ac675
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Showing 2 changed files with 2 additions and 1 deletion.
1 change: 1 addition & 0 deletions wp-includes/kses.php
Expand Up @@ -1664,6 +1664,7 @@ function wp_kses_html_error( $string ) {
* @return string Sanitized content.
*/
function wp_kses_bad_protocol_once( $string, $allowed_protocols, $count = 1 ) {
$string = preg_replace( '/(&#0*58(?![;0-9])|&#x0*3a(?![;a-f0-9]))/i', '$1;', $string );
$string2 = preg_split( '/:|&#0*58;|&#x0*3a;/i', $string, 2 );
if ( isset( $string2[1] ) && ! preg_match( '%/\?%', $string2[0] ) ) {
$string = trim( $string2[1] );
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2 changes: 1 addition & 1 deletion wp-includes/version.php
Expand Up @@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.3-alpha-45990';
$wp_version = '5.3-alpha-45997';

/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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