MediaWiki up to 1.39.5/1.40.1/1.41.0 WikibaseLexeme Special:MergeLexemes access control

Summaryinfo

A vulnerability was found in MediaWiki up to 1.39.5/1.40.1/1.41.0 and classified as critical. This vulnerability affects unknown code of the file Special:MergeLexemes of the component WikibaseLexeme. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2024-34502. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in MediaWiki up to 1.39.5/1.40.1/1.41.0. This vulnerability affects an unknown code of the file Special:MergeLexemes of the component WikibaseLexeme. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity, and availability. CVE summarizes:

An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.

The advisory is available at phabricator.wikimedia.org. This vulnerability was named CVE-2024-34502. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 1.39.6, 1.40.2 or 1.41.1 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

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
• 1.40
• 1.40.0
• 1.40.1
• 1.41.0

License

• open-source

Website

• Product: https://www.mediawiki.org/wiki/MediaWiki

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CPE 2.2info

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