Cross-site scripting (XSS) vulnerability in RoundCube webmail 0.1rc2, 2007-12-09, and earlier versions, when using Internet Explorer, allows remote attackers to inject arbitrary web script or HTML via style sheets containing expression commands.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38981
http://www.securityfocus.com/archive/1/484802/100/0/threaded