Jemscripts DownloadControl 1.0 allows remote attackers to obtain sensitive information via an invalid dcid parameter to dc.php, which leaks the pathname in an error message. NOTE: this was originally claimed to be SQL injection, but it is probably resultant from another issue in functions.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26576
http://www.vupen.com/english/advisories/2006/1928
http://www.securityfocus.com/archive/1/434533/100/0/threaded