CVE-2025-67478

8.8 HIGH

Published: February 03, 2026 Modified: April 14, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://phabricator.wikimedia.org/T385403

Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Broken Link

1 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.8 / 10.0

EPSS (Exploit Probability)

0.0%

6th percentile

Exploitation Status

Not in CISA KEV

Affected Vendors

mediawiki