Movable Type Pro, Open Source, and Advanced before 5.2.12 and Pro and Advanced 6.0.x before 6.0.7 does not properly use the Perl Storable::thaw function, which allows remote attackers to include and execute arbitrary local Perl files and possibly execute arbitrary code via unspecified vectors.
https://www.debian.org/security/2015/dsa-3183
https://exchange.xforce.ibmcloud.com/vulnerabilities/100912
http://www.securitytracker.com/id/1031777
http://www.securityfocus.com/bid/72606