Glad to know we resolved the problem.

The forum is Rob Howard's product called community server.

Here is the link:

http://communityserver.org/

The forum has a built-in filter function.

 

CuteEditor automatically remove inject script before write the string into your DB if you specify the remove Editor.EnableStripScriptTags Property to true.

However CuteEditor does allow the iframe tag.

Let me know if you have any further questions.