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VULNERABILITIES

CVE-2026-0669 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:7.5 HIGHVector: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

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URLSource(s)Tag(s)
https://gerrit.wikimedia.org/r/q/Ia15bf3f2e5a341868568492a736ac3dbf706c22e wikimedia-foundationPatch
https://phabricator.wikimedia.org/T401526 wikimedia-foundationExploitIssue Tracking

Weakness Enumeration

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

Affected Products

ProductVersions
css project css
All versions

CPE

  • cpe:2.3:a:css_project:css:-:*:*:*:*:mediawiki:*:*

Remediation

  • No remediation found in references.
mediawiki mediawiki
1.39.0 -
1.43.0 -
1.44.0

CPE

  • 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:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-0669
NVD Published Date:
Jan 7, 2026
NVD Last Modified:
Jun 17, 2026
Source:
wikimedia-foundation
CVE-2026-0669 Details - Not Deferred