Medium severity · published Feb 3, 2026
CVE-2025-61658
Special:GlobalContributions shows edits on wikis the viewer doesn't have access to
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/GlobalContributions/GlobalContributionsPager.Php.
This issue affects CheckUser: from * before 1.43.4, 1.44.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
CheckUser · Wikimedia Foundation
before 1.43.4, 1.44.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-61658
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-61658
Permissions Required
https://phabricator.wikimedia.org/T404805
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