MediaWiki ApiFeedContributions.php Vulnerability pre-1.39.13/1.42.7/1.44.0
CVE-2025-6591 Published on February 2, 2026
HTML injection in API action=feedcontributions output from i18n message
Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/api/ApiFeedContributions.Php.
This issue affects MediaWiki: from * before 1.39.13, 1.42.7 1.43.2, 1.44.0.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2025-6591 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-6591
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Affected Versions
Wikimedia Foundation MediaWiki:- Version * and below 1.39.13, 1.42.7 1.43.2, 1.44.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.