CVE-2025-61638 Affecting mediawiki package, versions <1:1.43.5+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.24% (16th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-MEDIAWIKI-13277355
  • published4 Oct 2025
  • disclosed3 Feb 2026

Introduced: 4 Oct 2025

CVE-2025-61638  (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 MediaWiki, Wikimedia Foundation Parsoid. This vulnerability is associated with program files includes/parser/Sanitizer.Php, src/Core/Sanitizer.Php.

This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1; Parsoid: from * before 0.16.6, 0.20.4, 0.21.1.

CVSS Base Scores

version 3.1