CVE-2025-61647
Information Disclosure Vulnerability in Wikimedia CheckUser Component
Publication date: 2026-02-03
Last updated on: 2026-04-29
Assigner: wikimedia-foundation
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wikimedia | checkuser | From a3dc1bbcc33acbcca6831d6afaccbb1054c93a57 (inc) to 0584eb2ad564648aa3ce9c555dd044dda02b55f4 (inc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know