Hi Abigail.
The reason that i posted this question here was cause the book that i was reading was written by Lincoln Stein and Doug MacEachern, and Stein is the perl CGI module creator.

Also, the book uses perl as programming language and, as cfreak notes, it's cgi-related.

I don't focuse my post in the warning of the vulnerability itself, because is well documented (for example, this post describes the solution)

So, i expected that some big perlmonger could give me some answers. That's all.