[ CVE-2026-100245 · Published 29 Sep 2026 ]

Vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension

CVSS 6.1 EPSS <1%No fix listed yet

[ Description ]Official description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from * before 1.46.1, 1.45.5, 1.43.10.

[ 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.