CVE-2012-0320
Movable Type before 4.38, 5.0x before 5.07, and 5.1x before 5.13 allows remote attackers to take control of sessions via unspecified vectors related to the (1) commenting feature and (2) community script.
Date published : 2012-03-02
http://www.securityfocus.com/bid/52138
http://www.movabletype.org/2012/02/movable_type_513_507_and_438_security_updates.html