PortalApp 4.0 does not require authentication for (1) forums.asp and (2) content.asp, which allows remote attackers to create and delete forums, topics, and replies.
https://www.exploit-db.com/exploits/4848
https://exchange.xforce.ibmcloud.com/vulnerabilities/39457
http://www.securityfocus.com/bid/27170
http://www.aspapp.com/content.asp?CatId=197&ContentType=Downloads