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CVE-2025-67478 Details
Description
Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files includes/Mail/UserMailer.Php. This issue affects CheckUser: from * before 1.39.14, 1.43.4, 1.44.1.
A vulnerability exists in the Wikimedia Foundation CheckUser extension, specifically in the UserMailer.php file. This issue affects CheckUser versions prior to 1.39.14, as well as 1.43.4 and 1.44.1.
Metrics
CVSS 4.0 Severity and Vector Strings:
CNA: wikimedia-foundationCVSS-B:0 NONEVector:CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 3, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://phabricator.wikimedia.org/T385403 | wikimedia-foundation | Broken Link |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mediawiki checkuser | >= 1.39.0, < 1.39.14 >= 1.43.0, < 1.43.4 1.44.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | wikimedia-foundation |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 14, 2026 | Initial Analysis | [email protected] |
| Feb 3, 2026 | New CVE Received | wikimedia-foundation |