What’s Vulnerable › Vulnerabilities

CVE-2026-0669: Path Traversal vulnerability in CSS extension on certain web servers

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-07 · updated 2026-10-26
• Weakness: CWE-22

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.

Affected products

• Wikimedia Foundation MediaWiki - CSS extension: all versions

References

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

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