SQL injection vulnerability in index.php in the PNphpBB2 1.2i and earlier module for PostNuke allows remote attackers to execute arbitrary SQL commands via the c parameter.
https://www.exploit-db.com/exploits/4026
https://exchange.xforce.ibmcloud.com/vulnerabilities/34668
http://www.vupen.com/english/advisories/2007/2037
http://www.securityfocus.com/bid/24295