The setCookieValue function in _lib/functions.global.inc.php in LiveZilla before 5.1.2.1 allows remote attackers to execute arbitrary PHP code via a serialized PHP object in a cookie.
https://exchange.xforce.ibmcloud.com/vulnerabilities/89796
http://www.securityfocus.com/bid/64383
http://forums.livezilla.net/index.php?/topic/163-livezilla-changelog/
http://archives.neohapsis.com/archives/bugtraq/2013-12/0078.html