UpHeron
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Servers and applications

CVE-2025-11261

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.Language/mediawiki.Language.Js. This issue affects MediaWiki: from * before 1.39.15, 1.43.5, 1.44.2.

Severity
Unrated
Published
3 Feb 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.39.15, 1.43.5, 1.44.2
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version before 1.39.15
  • From 1.43.0 before 1.43.5
  • From 1.44.0 before 1.44.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-11261
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-11261