CVE-2025-61647 PUBLISHED

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

Assigner: wikimedia-foundation
Reserved: 29.09.2025 Published: 03.02.2026 Updated: 03.02.2026

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.

CVSS Vector: 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
CVSS Score: 0.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	Active

CVSS 4.0

Vendor	Wikimedia Foundation
Product	CheckUser
Versions	Default: unaffected affected from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4 to * (excl.)