Changeset 46901 for branches/5.2/src/wp-includes/kses.php

Timestamp:

12/12/2019 06:17:35 PM (7 years ago)

Author:

whyisjake

Message:

Ensure that a user can publish_posts before making a post sticky.

Props: danielbachhuber, whyisjake, peterwilson, xknown.

Prevent stored XSS through wp_targeted_link_rel().

Props: vortfu, whyisjake, peterwilsoncc, xknown, SergeyBiryukov, flaviozavan.

Update wp_kses_bad_protocol() to recognize : on uri attributes,

wp_kses_bad_protocol() makes sure to validate that uri attributes don’t contain invalid/or not allowed protocols. While this works fine in most cases, there’s a risk that by using the colon html5 named entity, one is able to bypass this function.

Brings r46895 to the 5.3 branch.

Props: xknown, nickdaugherty, peterwilsoncc.

Prevent stored XSS in the block editor.

Brings r46896 to the 5.3 branch.

Prevent escaped unicode characters become unescaped in unsafe HTML during JSON decoding.

Props: aduth, epiqueras.

Location:

branches/5.2

Files:

• . (modified) (1 prop)
• src/wp-includes/kses.php (modified) (1 diff)

branches/5.2/src/wp-includes/kses.php

@@ -1659 +1659 @@
 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 );
+        $string2 = preg_split( '/:|&#0*58;|&#x0*3a;|:/i', $string, 2 );
         if ( isset( $string2[1] ) && ! preg_match( '%/\?%', $string2[0] ) ) {
                 $string   = trim( $string2[1] );