CVE-2015-2931

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.19.24 MediaWiki versions 1.20.x through 1.23.9 MediaWiki versions 1.24.x prior to 1.24.2

Description The issue allows remote attackers to inject arbitrary web script or HTML via an application/xml MIME type for a nested SVG with a data: URI. This is due to an incomplete blacklist vulnerability in includes/upload/UploadBase.php.

Recommendations For MediaWiki versions prior to 1.19.24, update to version 1.19.24 or later. For MediaWiki versions 1.20.x through 1.23.9, update to version 1.23.9 or later. For MediaWiki versions 1.24.x prior to 1.24.2, update to version 1.24.2 or later.