CVE-2013-4303

Name	CVE-2013-4303
Description	includes/libs/IEUrlExtension.php in the MediaWiki API in MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 does not properly detect extensions when there are an even number of "." (period) characters in a string, which allows remote attackers to conduct cross-site scripting (XSS) attacks via the siprop parameter in a query action to wiki/api.php.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mediawiki (PTS)	stretch (security)	1:1.27.7-1+deb9u11	fixed
	stretch (lts), stretch	1:1.27.7-1+deb9u13	fixed
	buster (security), buster, buster (lts)	1:1.31.16-1+deb10u8	fixed
	bullseye	1:1.35.13-1+deb11u2	fixed
	bullseye (security)	1:1.35.13-1+deb11u3	fixed
	bookworm (security), bookworm	1:1.39.10-1~deb12u1	fixed
	sid, trixie	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	(unstable)	1:1.19.8+dfsg-1	unimportant

https://bugzilla.wikimedia.org/show_bug.cgi?id=52746
IE6 lacks so many security features that this doesn't matter