CVE-2013-4568

Name	CVE-2013-4568
Description	Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-2891-1
Debian Bugs	729629

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mediawiki (PTS)	bullseye	1:1.35.13-1+deb11u2	fixed
	bullseye (security)	1:1.35.13-1+deb11u3	fixed
	bookworm, bookworm (security)	1:1.39.10-1~deb12u1	fixed
	trixie, sid	1:1.39.10-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
mediawiki	source	squeeze	(unfixed)	end-of-life
mediawiki	source	wheezy	1:1.19.14+dfsg-0+deb7u1		DSA-2891-1
mediawiki	source	(unstable)	1:1.19.8+dfsg-2.2			729629
mediawiki-extensions	source	wheezy	3.5~deb7u1		DSA-2891-1

https://bugzilla.wikimedia.org/show_bug.cgi?id=55332