Wikimedia MediaWiki up to 1.39.12/1.43.x ApiFeedContributions.Php cross site scripting

Summaryinfo

A vulnerability was found in Wikimedia MediaWiki up to 1.39.12/1.43.x and classified as problematic. Affected by this vulnerability is an unknown functionality of the file includes/api/ApiFeedContributions.Php. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2025-6591. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wikimedia MediaWiki up to 1.39.12/1.43.x. It has been declared as problematic. This vulnerability affects an unknown code of the file includes/api/ApiFeedContributions.Php. The CWE definition for the vulnerability is CWE-79. The product 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. The impact remains unknown. CVE summarizes:

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.

The advisory is shared for download at phabricator.wikimedia.org. This vulnerability was named CVE-2025-6591 since 06/25/2025. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:includes/api/ApiFeedContributions.Php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.39.13, 1.42.7 1.43.2 or 1.44.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Vendor

• Wikimedia

Name

• MediaWiki

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.39.0
• 1.39.1
• 1.39.2
• 1.39.3
• 1.39.4
• 1.39.5
• 1.39.6
• 1.39.7
• 1.39.8
• 1.39.9
• 1.39.10
• 1.39.11
• 1.39.12
• 1.40
• 1.41
• 1.42
• 1.43

License

• open-source

CPE 2.3info

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CPE 2.2info

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