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Debian Security Advisory DSA-3110-1                   security@debian.org
https://www.debian.org/security/                        Sebastien Delafond
December 23, 2014                      https://www.debian.org/security/faq
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Package        : mediawiki
Debian Bug     : 773654

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.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org