PHP remote file inclusion vulnerability in index.php in Knusperleicht Shoutbox 4.4 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the sb_include_path parameter.
https://www.exploit-db.com/exploits/2103
https://exchange.xforce.ibmcloud.com/vulnerabilities/28123
http://www.vupen.com/english/advisories/2006/3090
http://www.securityfocus.com/archive/1/441815/100/0/threaded