AJ-Fork 167 does not restrict access to directories such as (1) data, (2) inc, (3) plugins, (4) skins, or (5) tools, which allows remote attackers to list files in those directories via a direct HTTP request.
https://exchange.xforce.ibmcloud.com/vulnerabilities/17569
http://www.securityfocus.com/bid/11301
http://securitytracker.com/id?1011484