CH
Product
CheckUser
by MediaWiki · last CVE Sep 14, 2026
9
CVEs
0
On KEV
8.8
Max CVSS
0
New 30D
Severity mix
Critical 0High 2Medium 5Low 1
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2019-18611
6.5
1%
Oct 29
An issue was discovered in the CheckUser extension through 1.34 for MediaWiki
Affected: through 1.34
CVE-2025-61651
6.1
0%
Feb 3
i18n XSS through Special:CheckUser CheckUser helper
Affected: before 1.44.1
CVE-2025-61648
6.1
0%
Feb 3
Stored XSS through system messages in CheckUser
Affected: before 1.44.1
CVE-2019-16529
5.3
1%
Mar 19
An issue was discovered in the CheckUser extension through 1.35.0 for MediaWiki
Affected: through 1.35
CVE-2025-61658
4.3
0%
Feb 3
Special:GlobalContributions shows edits on wikis the viewer doesn't have access to
Affected: 1.43.0 before 1.43.4; 1.44.0
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