Cross-site scripting (XSS) vulnerability in the internal browser in vSphere Client in VMware vSphere 4.1 before Update 2 and 5.0 before Update 1 allows remote attackers to inject arbitrary web script or HTML via a crafted log-file entry.
https://exchange.xforce.ibmcloud.com/vulnerabilities/74093
http://www.vmware.com/security/advisories/VMSA-2012-0005.html
http://www.securitytracker.com/id?1026817
http://www.securityfocus.com/bid/52525