Lexeme Merge Vulnerability in MediaWiki
CVE-2024-34502

9.8CRITICAL

Key Information:

Vendor

MediaWiki
Status
Mediawiki
Vendor
CVE Published:
5 May 2024

What is CVE-2024-34502?

A vulnerability in the WikibaseLexeme extension for MediaWiki can lead to unintended edits to the merge functionality. Specifically, the Special:MergeLexemes page may process requests to merge lexemes based on parameters that shouldn't allow it, such as non-POST requests or requests lacking a requisite edit token. This flaw can enable unauthorized actions, resulting in unexpected data manipulation.

References

https://phabricator.wikimedia.org/T357101
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wik...
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.