Cross-site scripting (XSS) vulnerability in ldap_test.cgi in Barracuda Spam Firewall (BSF) before 3.5.11.025 allows remote attackers to inject arbitrary web script or HTML via the email parameter.
Barracuda Spam Firewall 3.1.10 and earlier does not restrict the domains that white-listed domains can send mail to, which allows members of white-listed domains to use Barracuda as an open mail relay for spam.