Session fixation vulnerability in CubeCart before 5.2.9 allows remote attackers to hijack web sessions via the PHPSESSID parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/92526
http://www.securitytracker.com/id/1030086
http://www.securityfocus.com/bid/66805
http://www.exploit-db.com/exploits/32830
http://secunia.com/advisories/57856
http://forums.cubecart.com/topic/48427-cubecart-529-relased/