CGI:IRC is a Perl/CGI program that lets you access IRC from a web browser, it is designed to be flexible and has many uses such as an IRC gateway for an IRC network, a chat-room for a website or to access IRC when stuck behind a restrictive firewall.
CGI:IRC 0.5.12
There's a new release out, with a security fix:
CVE-2017-8920: XSS in 'R' parameter. Thanks to Niklaus Schiess for discovering this.
