Multiple PHP remote file inclusion vulnerabilities in PHPauction GPL 2.51 allow remote attackers to execute arbitrary PHP code via a URL in the include_path parameter to (1) converter.inc.php, (2) messages.inc.php, and (3) settings.inc.php in includes/.
https://www.exploit-db.com/exploits/5266
https://exchange.xforce.ibmcloud.com/vulnerabilities/41239
http://www.vupen.com/english/advisories/2008/0908/references