Multiple cross-site scripting (XSS) vulnerabilities in MailEnable Enterprise 6.5 allow remote attackers to inject arbitrary web script or HTML via the (1) From, (2) To, or (3) Subject header or (4) body in an SMTP e-mail message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/77547
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-2574
http://www.securityfocus.com/bid/54900
http://www.exploit-db.com/exploits/20351