index.php in BugPort 1.147 and earlier allows remote attackers to obtain sensitive information such as full path and system configuration via an invalid action parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/23921
http://www.vupen.com/english/advisories/2006/0009
http://secunia.com/advisories/18282
http://pridels0.blogspot.com/2005/12/bugport-multiple-vuln.html