High Risk Vulnerability in McAfee Email and Web Security Appliance 29 March 2012 Ben Williams of NGS Secure has discovered a high risk vulnerability in the McAfee Email and Web Security Appliance Impact: Reflective XSS allowing an attacker to gain session tokens Versions affected: All versions prior to 5.5 Patch 6, Email and Web Security 5.6 Patch 3, McAfee Email Gateway 7.0 Patch 1 NGS Secure is going to withhold details of this flaw for three months. This three month window will allow users the time needed to apply the patch before the details are released to the general public. This reflects the NGS Secure approach to responsible disclosure. NGS Secure Research http://www.ngssecure.com/research.aspx