The remote host is vulnerable to a SQL Injection attack.
The remote host is running the Simple Machines Forum (SMF), a web forum. This version of SMF is vulnerable to a remote SQL Injection flaw. The application fails to properly parse out SQL-reserved characters passed to the 'msg' parameter. This would allow a remote attacker to read or write data as well as potentially execute arbitrary code on the remote database.
Upgrade to version 1.0.5 or higher.