It was reported that MediaWiki, a website engine for collaborative work, allowed to load user-created CSS on pages where user-created JavaScript is not allowed. A wiki user could be tricked into performing actions by manipulating the interface from CSS, or JavaScript code being executed from CSS, on security-wise sensitive pages like Special:Preferences and Special:UserLogin. This update removes the separation of CSS and JavaScript module allowance.

For the stable distribution (wheezy), this problem has been fixed in version 1:1.19.20+dfsg-0+deb7u1. For the unstable distribution (sid), this problem has been fixed in version 1:1.19.20+dfsg-1. We recommend that you upgrade your mediawiki packages.

MediaWiki is a wiki engine (a program for creating a collaboratively edited website). It is designed to handle heavy websites containing library-like document collections, and supports user uploads of images/sounds, multilingual content, TOC autogeneration, ISBN links, etc.

mediawiki on Debian Linux

This check tests the installed software version using the apt package manager.

• http://www.debian.org/security/2014/dsa-3046.html

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Updated on 2015-03-25