Unrated severityOSV Advisory· Published Feb 2, 2026· Updated Feb 3, 2026
Stored XSS through system messages in MW Core
CVE-2025-61637
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Action/mediawiki.Action.Edit.Preview.Js, resources/src/mediawiki.Page.Preview.Js.
This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Affected products
1- Range: 1.1.0, 1.3.0beta1, 1.39.0, …
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
0No linked articles in our index yet.