Hmm, it's been a while since I last touched cPanel (almost 10 years), but I recall it automatically included aliases for cgi scripts into each vhost. Try /cgi-

Hmm, it's been a while since I last touched cPanel (almost 10 years), but I recall it automatically included aliases for cgi scripts into each vhost. Try /cgi-sys/guestbook.cgi on any cPanel website for example (a random Google example: https://www.vidahost.com/cgi-sys/guestbook.cgi https://www.vidahost.com/cgi-sys/guestbook.cgi)