BaseFortify

Publication date: 2026-01-07

Last updated on: 2026-02-23

Assigner: wikimedia-foundation

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-01-07

Last Modified

2026-02-23

Generated

2026-07-06

AI Q&A

2026-01-07

EPSS Evaluated

2026-07-05

NVD

CVE-2026-0669

EUVD

EUVD-2026-1175

Affected Vendors & Products

Vendor	Product	Version / Range
css_project	css	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This vulnerability is a Path Traversal issue in the Wikimedia Foundation MediaWiki CSS extension. It occurs because the software does not properly limit the pathname to a restricted directory, allowing an attacker to access files and directories outside the intended scope.

Impact Analysis

This vulnerability can allow an attacker to access sensitive files on the server that should be restricted, potentially leading to unauthorized information disclosure or further exploitation of the system.

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