PHP remote file inclusion vulnerability in SocketMail Lite and Pro 2.2.6 and earlier, when register_globals and magic_quotes are enabled, allows remote attackers to execute arbitrary PHP code via a URL in the site_path parameter to (1) index.php and (2) inc-common.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26693
http://www.vupen.com/english/advisories/2006/1976
http://www.majorsecurity.de/advisory/major_rls6.txt