The irony of your Post and the issue is well very ironic. Using cgi-bin in the Forum Topic URL caused a 403 forbidden error when trying to view this topic. I had to rename the URL to cgi_bin in order to view this topic since cgi-bin is explicitly blocked in URLs by BPS since this is a dangerous thing to allow.
There is a cgi-bin security rule in the root .htaccess file. Copy the entire BPS Query String Exploits section of code to BPS Custom Code, comment out the cgi-bin security filter with a Pound sign #, Save your custom code and then go to the Security Modes page and activate root folder BulletProof Mode.
the rest of the BPS Query String Exploits code is here
#RewriteCond %{THE_REQUEST} cgi-bin [NC,OR]
the rest of the BPS Query String Exploits code is here
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