Cross-site scripting (XSS) vulnerability in frmCompose.aspx in SmarterTools SmarterMail 1.6.1511 and 1.6.1529 allows remote attackers to inject arbitrary web script or HTML via Javascript to the "check spelling" feature in the compose area.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15393
http://www.securityfocus.com/bid/9805
http://securitytracker.com/id?1009307
http://secunia.com/advisories/11042
http://members.lycos.co.uk/r34ct/main/smarter_mail%203.1/smarter_mail.txt