SonicBB 1.0 allows remote attackers to obtain sensitive information via the (1) by[] parameter to search.php, (2) p[] parameter to viewforum.php, and the (3) id parameter to (a) viewforum.php or (b) members.php, which reveal the installation path in the resulting error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/34259
http://www.vupen.com/english/advisories/2007/1816
http://www.securityfocus.com/archive/1/468535/100/0/threaded
http://www.netvigilance.com/advisory0018