We use these services and cookies to improve your user experience. You may opt out if you wish, however, this may limit some features on this site.
Please see our statement on Data Privacy.
The TitleIcon extension for MediaWiki is vulnerable to stored XSS through the #titleicon_unicode parser function. User input passed to this function is wrapped in an HtmlArmor object without sanitization and rendered directly into the page header, allowing attackers to inject arbitrary JavaScript. This issue affects Mediawiki - TitleIcon extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
Reserved 2025-07-08 | Published 2025-07-08 | Updated 2025-07-10 | Assigner wikimedia-foundationCWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
phabricator.wikimedia.org/T394721
gerrit.wikimedia.org/...b638fecbf52b5bec3f02726ed24b1ae74429
gerrit.wikimedia.org/...73445172679634f6ec64d37cf82507dfa110
Support options