CVE-2025-67478

High · 8.8

CVSS

8.8

EPSS

0.4%

Published

Feb 3, 2026

CISA due date

—

The record

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.

Affected packages

Ecosystem	Package	Introduced	Fixed