Cross-site scripting (XSS) vulnerability in Citrix Web Interface 5.0, 5.1, and 5.3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2007-6477 and CVE-2009-2454.
http://www.vupen.com/english/advisories/2010/3153
http://www.securityfocus.com/bid/45291
http://support.citrix.com/article/CTX127541