CVE-2025-11261
6.1
MEDIUM
CVSS 3.1
EPSS 0.22%
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.Language/mediawiki.Language.Js. This issue affects MediaWiki: from * before 1.39.15, 1.43.5, 1.44.2.
How to fix CVE-2025-11261
To remediate CVE-2025-11261, upgrade the affected package to a fixed version below.
- Debian/mediawiki—upgrade to 1:1.35.13-1+deb11u5 or later
Is CVE-2025-11261 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:1.35.13-1+deb11u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |