Client Integration Plugin (CIP) in VMware vCenter Server 5.5 U3a, U3b, and U3c and 6.0 before U2; vCloud Director 5.5.5; and vRealize Automation Identity Appliance 6.2.4 before 6.2.4.1 mishandles session content, which allows remote attackers to hijack sessions via a crafted web site.
http://www.vmware.com/security/advisories/VMSA-2016-0004.html
http://www.securitytracker.com/id/1035572