MultiHTML 1.5 - File Disclosure
source: https://www.securityfocus.com/bid/6711/info
MultiHTML is prone to a file disclosure vulnerability.
It is possible for remote attackers to issue requests which are capable of disclosing sensitive webserver readable resources on the system hosting the software.
http://www.example.com/cgi-bin/multihtml.pl?multi=/etc/passwd%00html