CVE-2025-61657 Affecting mediawiki package, versions <1:1.43.5+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-MEDIAWIKI-13287253
- published5 Oct 2025
- disclosed3 Feb 2026
Introduced: 5 Oct 2025
CVE-2025-61657 (opens in a new tab)How to fix?
Upgrade Debian:unstable mediawiki to version 1:1.43.5+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mediawiki package and not the mediawiki package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Vector. This vulnerability is associated with program files resources/skins.Vector.Js/stickyHeader.Js.
This issue affects Vector: from * before 1.43.4, 1.44.1.