Incomplete blacklist vulnerability in MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2 allows remote attackers to inject arbitrary web script or HTML via an animated href XLink element.
www.mandriva.com/security/advisories?name=MDVSA-2015:200
www.openwall.com/lists/oss-security/2015/04/01/1
www.openwall.com/lists/oss-security/2015/04/07/3
www.securityfocus.com/bid/73477
lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html
phabricator.wikimedia.org/T86711
security.gentoo.org/glsa/201510-05