A flaw was discovered in mediawiki, a wiki engine: thumb.php outputs wikitext messages as raw HTML, potentially leading to cross-site scripting (XSS).

For the stable distribution (wheezy), this problem has been fixed in version 1.19.20+dfsg-0+deb7u3 this version additionally fixes a regression introduced in the previous release, DSA-3100-1. For the upcoming stable distribution (jessie) and unstable distribution (sid), this problem has been fixed in version 1:1.19.20+dfsg-2.2. 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-3110.html

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Updated on 2015-03-25