CVE-2025-61647
Unknown Unknown - Not Provided
Information Disclosure Vulnerability in Wikimedia CheckUser Component

Publication date: 2026-02-03

Last updated on: 2026-04-29

Assigner: wikimedia-foundation

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.
CVSS Scores
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Meta Information
Published
2026-02-03
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-02-03
EPSS Evaluated
2026-06-14
NVD
CVE-2025-61647
EUVD
EUVD-2025-206645
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wikimedia checkuser From a3dc1bbcc33acbcca6831d6afaccbb1054c93a57 (inc) to 0584eb2ad564648aa3ce9c555dd044dda02b55f4 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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Executive Summary

This vulnerability is in the Wikimedia Foundation's CheckUser tool, specifically in the program file src/Api/Rest/Handler/UserInfoHandler.Php. It affects certain versions of CheckUser identified by specific commit hashes. The vulnerability has a very low CVSS base score of 0.3, indicating it is likely of minimal impact or difficulty to exploit.

Impact Analysis

Given the very low CVSS score (0.3) and the limited information available, the impact of this vulnerability is likely minimal. It may require low privileges and user interaction, and it does not appear to affect confidentiality, integrity, or availability significantly.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

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