CVE-2025-61647

UserInfoCard: Don't allow access to information about users who are suppressed if you don't have suppressor rights

State: Published
Severity: 0.3 Low
Published: Feb 3, 2026
Updated: Mar 3, 2026
Reserved: Sep 29, 2025

Description

Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Api/Rest/Handler/UserInfoHandler.Php.

This issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4.

Scores

CVSS	Score	Vector	Source
4.0	0.3 Low	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U	wikimedia-foundation

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
CheckUserWikimedia Foundation	a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4 and laterAffected

References

https://phabricator.wikimedia.org/T399093

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