CVE-2012-4379: Mediawiki

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not send a restrictive X-Frame-Options HTTP header, which allows remote attackers to conduct clickjacking attacks via an embedded API response in an IFRAME element.

Affected products

• Mediawiki Mediawiki: up to and including 1.18.4; version 1.19.0 only; version 1.19.1 only

Published 2017-10-19. Last modified 2026-06-16.