in reply to Re: Trojan Horse? (taint mode)
in thread Trojan Horse? (taint mode)

The only way this is going to come and cause us grief is if we eval $a ?

But pause to consider that someone playing with your CGI script has managed to get output redirected to an executable shell script.... Which is often the aim of a malicious hack. If you don't want naughty words appearing in, for example, your system initialisation scripts, it might be a good idea to untaint everything input.