CVE-2025-6591

HTML injection in API action=feedcontributions output from i18n message

State: Published
Severity: 0.0 None
Published: Feb 2, 2026
Updated: Feb 28, 2026
Reserved: Jun 24, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	0.0 None	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N	wikimedia-foundation

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
MediaWikiWikimedia Foundation	before 1.39.13, 1.42.7 1.43.2, 1.44.0Affected

References

https://phabricator.wikimedia.org/T392276

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