Multiple cross-site scripting (XSS) vulnerabilities in BlackBerry Enterprise Server 12 (BES12) Self-Service before 12.4 allow remote attackers to inject arbitrary web script or HTML via the locale parameter to (1) mydevice/index.jsp or (2) mydevice/loggedOut.jsp.
https://www.exploit-db.com/exploits/39481/
http://www.securitytracker.com/id/1035095
http://support.blackberry.com/kb/articleDetail?articleNumber=000038033