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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00042.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Wikimedia Foundation CheckUser unaffected
Version Status Constraints
a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4 affected < *

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://phabricator.wikimedia.org/T399093 cve-icon cve-icon
History

Tue, 03 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
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.
Title UserInfoCard: Don't allow access to information about users who are suppressed if you don't have suppressor rights
References
Metrics cvssV4_0

{'score': 0.3, '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'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-02-03T00:02:04.402Z

Reserved: 2025-09-29T13:18:40.092Z

Link: CVE-2025-61647

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-03T00:16:10.520

Modified: 2026-02-03T16:44:03.343

Link: CVE-2025-61647

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.