Changeset 61951 for branches/5.9/src/wp-admin/includes/file.php

Timestamp:

03/12/2026 01:58:20 AM (4 weeks ago)

Author:

peterwilsoncc

Message:

Grouped backports for the 5.9 branch.

• XML-RPC: Switch to wp_safe_remote() when fetching a pingback URL.
• HTML API: Prevent WP_HTML_Tag_Processor instances being unserialized and add some extra logic for validating pattern and template file paths.
• KSES: Optimize PCRE pattern detecting numeric character references.
• Customize: Improve escaping approach used for nav menu attributes.
• Media: Ensure the attachment parent is accessible to the user before showing a link to it in the media manager.
• Administration: Ensure client-side templates are only detected when they're correctly associated with a script tag.
• Filesystem API: Don't attempt to extract invalid files from a zip when using the PclZip library.

Merges [61879-61885,61887,61890,61913] to the 5.9 branch.

Props johnbillion, xknown, dmsnell, jorbin, peterwilson, desrosj, westonruter, jonsurrell, aurdasjb.

Location:

branches/5.9

Files:

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

branches/5.9/src/wp-admin/includes/file.php

@@ -1794 +1794 @@
         }
 
+        // Don't extract invalid files:
+        if ( 0 !== validate_file( $file['filename'] ) ) {
+            continue;
+        }
+
         $uncompressed_size += $file['size'];