Code Injection Vulnerability in CheckUser by Wikimedia Foundation
CVE-2025-67478

NONE

Key Information:

Vendor

Wikimedia Foundation

Status
Checkuser
Vendor
CVE Published:
3 February 2026

What is CVE-2025-67478?

A code injection vulnerability has been identified in the CheckUser application, a tool used by the Wikimedia Foundation. This flaw allows attackers to execute arbitrary code through method manipulation in the affected versions of CheckUser. Specifically, versions prior to 1.39.14, as well as 1.43.4 and 1.44.1, are exposed. This vulnerability can potentially compromise user data and lead to unauthorized access. Users of the affected versions are advised to upgrade to the latest secure release to mitigate the risks associated with this vulnerability.

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Affected Version(s)

CheckUser * < 1.39.14, 1.43.4, 1.44.1

References

https://phabricator.wikimedia.org/T385403

CVSS V4

Score:
Severity:
NONE
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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