Vulnerability in The Wikimedia Foundation Mediawiki - Thanks Extension

[ Description ]Official description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Thanks Extension allows Stored XSS. This issue affects Mediawiki - Thanks Extension: from * before 1.43.10/1.45.5/1.46.1.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund27 Sep 2026WID-SEC-2026-3597

  MediaWiki Extensions: Multiple vulnerabilities Translated from German

  CVE-2026-57440CVE-2026-96875CVE-2026-100237+11 more CVEs

[ References ]References

• gerrit.wikimedia.org/r/q/I6d563f9cdab25c07dcd0083f3af2126e0859d098
• phabricator.wikimedia.org/T432424