Cross-site scripting (XSS) vulnerability in the UserPortal page in SOPHOS UTM before 9.353 allows remote attackers to inject arbitrary web script or HTML via the lang parameter.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-3152
http://www.securitytracker.com/id/1035048
http://www.halock.com/blog/cve-2016-2046-cross-site-scripting-sophos-utm-9/
http://seclists.org/fulldisclosure/2016/Feb/60
http://packetstormsecurity.com/files/135709/Sophos-UTM-9-Cross-Site-Scripting.html