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.

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Solution

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Workaround

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History

Mon, 23 Feb 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Css Project
Css Project css
CPEs cpe:2.3:a:css_project:css:-:*:*:*:*:mediawiki:*:*
cpe:2.3:a:mediawiki:mediawiki:1.39.0:-:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.43.0:-:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.44.0:*:*:*:*:*:*:*
Vendors & Products Css Project
Css Project css

Thu, 08 Jan 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki-css Extension
Vendors & Products Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki-css Extension

Thu, 08 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 07 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Jan 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Path Traversal vulnerability in CSS extension on certain web servers
Weaknesses CWE-22
References

cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-01-07T19:21:57.287Z

Reserved: 2026-01-07T16:35:00.729Z

Link: CVE-2026-0669

cve-icon Vulnrichment

Updated: 2026-01-07T19:21:11.932Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-07T18:15:53.003

Modified: 2026-02-23T18:45:28.033

Link: CVE-2026-0669

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-01-07T17:46:57Z

Links: CVE-2026-0669 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-08T09:48:08Z

Weaknesses