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CVE-2024-34502

Date: May 4, 2024

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.

Language: PHP

Severity Score

Related Resources (5)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/1013359
https://phabricator.wikimedia.org/T357101
https://nvd.nist.gov/vuln/detail/CVE-2024-34502
https://www.mend.io/vulnerability-database/CVE-2024-34502

Severity Score

Weakness Type (CWE)

Cross-Site Request Forgery (CSRF)

CWE-352

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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