Cross-site request forgery (CSRF) vulnerability in the CheckUser extension for MediaWiki allows remote attackers to hijack the authentication of certain users for requests that retrieve sensitive user information via unspecified vectors.
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/T85858
security.gentoo.org/glsa/201510-05