Wikipedia
CGI.pm
CGI.pm is a large and widely used Perl module for programming Common Gateway Interface (CGI) web applications, providing a consistent API for receiving and processing user input. There are also functions for producing HTML or XHTML output, but these are now unmaintained and are to be avoided. CGI.pm was a core perl module but has been removed as of v5.22 of perl. The module was written by Lincoln Stein and is now maintained by Lee Johnson.