CVE-2026-0669

Path Traversal vulnerability in CSS extension on certain web servers

State: Published
Severity: 7.5 High
Published: Jan 7, 2026
Updated: Jan 7, 2026
Reserved: Jan 7, 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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
MediaWiki - CSS extensionWikimedia Foundation	1.44Affected 1.43Affected 1.39Affected

References

https://phabricator.wikimedia.org/T401526
https://gerrit.wikimedia.org/r/q/Ia15bf3f2e5a341868568492a736ac3dbf706c22e

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