Postfixadmin is a web-based management tool for Postfix-style virtual domains and users.
Multiple SQL injection vulnerabilities (CVE-2012-0811) and cross-site scripting vulnerabilities (CVE-2012-0812) have been found in Postfixadmin.
A remote attacker could exploit these vulnerabilities to execute arbitrary SQL statements or arbitrary HTML and script code.
There is no known workaround at this time.
All Postfixadmin users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apps/postfixadmin-2.3.5"