Multiple PHP remote file inclusion vulnerabilities in interact 2.2, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the (1) CONFIG[BASE_PATH] parameter in (a) admin/autoprompter.php and (b) includes/common.inc.php, and the (2) CONFIG[LANGUAGE_CPATH] parameter in (c) admin/autoprompter.php.
https://www.exploit-db.com/exploits/2218
https://exchange.xforce.ibmcloud.com/vulnerabilities/28485
http://www.securityfocus.com/archive/1/444526/100/0/threaded