Even if there are no CGI scripts available on your server, you can use scripts that are placed on public servers for this purpose. Here is a partial list of sites that remotely host such scripts.
Remotely hosted CGI script web applications. Scriptomatic.net specializes in website-enhancing tools to facilitate the automation of web site content.
http://www.scriptomatic.net/
Welcome to Cut and Paste Scripts. We offer free and advert free remotely hosted CGI for you to use on your website. Unlike other services available you will never see an advert on any of our scripts.
http://www.cutandpastescripts.com/
This page is always under construction. Let us know if you find any broken links or have suggestions for new links.