A reflected Cross-Site Scripting (XSS) vulnerability in Fortinet FortiMail 5.1 and earlier, 5.2.0 through 5.2.9, and 5.3.0 through 5.3.9 customized pre-authentication webmail login page allows attacker to inject arbitrary web script or HTML via crafted HTTP requests.

An unauthenticated XSS vulnerability with FortiMail 5.0.0 - 5.2.9 and 5.3.0 - 5.3.8 could allow an attacker to execute arbitrary scripts in the security context of the browser of a victim logged in FortiMail, assuming the victim is social engineered into clicking an URL crafted by the attacker.

The STARTTLS implementation in the server in Ipswitch IMail 11.03 and earlier does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

Unknown vulnerability in the Web calendaring component of Ipswitch IMail Server before 8.13 allows remote attackers to cause a denial of service (crash) via "specific content."

Multiple features in Ipswitch IMail Server before 8.13 allow remote attackers to cause a denial of service (crash) via (1) a long sender field to the Queue Manager or (2) a long To field to the Web Messaging component.

Buffer overflow in the LDAP component of Ipswitch IMail 7.1 and earlier allows remote attackers to execute arbitrary code via a long "bind DN" parameter.

Ipswitch IMAIL server 6.02 and earlier allows remote attackers to cause a denial of service via the AUTH CRAM-MD5 command.

IMail IMONITOR status.cgi CGI script allows remote attackers to cause a denial of service with many calls to status.cgi.

Ipswitch IMail 5.0 and 6.0 uses weak encryption to store passwords in registry keys, which allows local attackers to read passwords for e-mail accounts.