Fusetalk Version 3.0, the current Allaire forums, has a hole that could allow a remote attacker to execute malicious SQL queries on the SQL database. This is classified as "high risk". Anyone using Fusetalk should get the patch, which was made available within three hours of the security hole being discovered. Links to the exploit and the vendor's site below.
FuseTalk 'join.cfm' Form Could Allow the Execution of Malicious SQL Queries
e-Zone Media FuseTalk Form Input Validation Vulnerability (Solution Section)