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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00013.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Wikimedia Foundation MediaWiki unaffected
Version Status Constraints
* affected
< 1.39.13, 1.42.7 1.43.2, 1.44.0

No data.

No data.

Vendor Product Confidence Versions
Mediawiki Mediawiki — —
Wikimedia Mediawiki — —

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4249-1 mediawiki security update
Debian DSA Debian DSA DSA-5957-1 mediawiki security update
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://phabricator.wikimedia.org/T392276 cve-icon cve-icon
History

Mon, 02 Mar 2026 02:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N'}

Sat, 28 Feb 2026 04:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Wed, 04 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 04 Feb 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki
Vendors & Products Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki

Mon, 02 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title HTML injection in API action=feedcontributions output from i18n message
References
Metrics cvssV4_0

{'score': 0, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-02-28T02:52:57.390Z

Reserved: 2025-06-24T22:27:42.888Z

Link: CVE-2025-6591

cve-icon Vulnrichment

Updated: 2026-02-04T15:32:55.080Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-02T23:16:01.653

Modified: 2026-02-28T04:16:17.870

Link: CVE-2025-6591

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-04T12:17:38Z

Weaknesses