MoinMoin before 1.8.7 and 1.9.x before 1.9.2 does not properly sanitize user profiles, which has unspecified impact and attack vectors.
http://www.vupen.com/english/advisories/2010/0600
http://www.securityfocus.com/bid/38023
http://www.openwall.com/lists/oss-security/2010/02/21/2
http://www.openwall.com/lists/oss-security/2010/02/15/4
http://www.openwall.com/lists/oss-security/2010/02/15/2
http://www.debian.org/security/2010/dsa-2014
http://secunia.com/advisories/38903
http://secunia.com/advisories/38444
http://moinmo.in/SecurityFixes