MediaWiki Checkuser Vulnerabilities

Mediawiki Checkuser vulnerabilities.

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14 September 2026

User Data Exposure in CheckUser Extension for MediaWiki by Wikimedia
CVE-2023-37252
MediawikiCheckuser3.1LOW

19 March 2020

Access Control Violation in MediaWiki CheckUser Extension by Wikimedia
CVE-2019-16529
MediawikiCheckuser5.3MEDIUM

29 October 2019

Sensitive Information Exposure in CheckUser Extension for MediaWiki
CVE-2019-18611
MediawikiCheckuser6.5MEDIUM

13 April 2015

Cross-Site Request Forgery Vulnerability in CheckUser Extension for MediaWiki
CVE-2015-2940
MediawikiCheckuser