Ubuntu Security Notice USN-2062-1
http://packetstormsecurity.com/files/124526/USN-2062-1.txt
Ubuntu Security Notice 2062-1 - Chris Chapman discovered cross-site scripting (XSS) vulnerabilities in Horizon via the Volumes and Network Topology pages. An authenticated attacker could exploit these to conduct stored cross-site scripting (XSS) attacks against users viewing these pages in order to modify the contents or steal confidential data within the same domain.