CVE-2026-0669

7.5 HIGH

Published: January 07, 2026 Modified: February 23, 2026

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Wikimedia Foundation MediaWiki - CSS extension allows Path Traversal.This issue affects MediaWiki - CSS extension: 1.44, 1.43, 1.39.

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:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://gerrit.wikimedia.org/r/q/Ia15bf3f2e5a341868568492a736ac3dbf706c22e

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

Patch

https://phabricator.wikimedia.org/T401526

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

Exploit Issue Tracking

2 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.5 / 10.0

EPSS (Exploit Probability)

0.1%

24th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-22

Affected Vendors

css_project mediawiki

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