Hi, I have this cgi script which is basically just a wrapper around YAPE::Regex::Explain : 
#!/usr/bin/perl
use strict;
use CGI;
use YAPE::Regex::Explain;

my $cgi = CGI->new();
die unless $cgi->param('regex'); 
my $regex = $cgi->param('regex');

print $cgi->header('text/plain');
print YAPE::Regex::Explain->new(qr/$regex/)->explain;

[download]
I'm wondering if it is secure to pass $regex into YAPE::Regex::Explain this way, and if not please provide me with a way this could be exploited security-wise.

In reply to CGI script security: putting untainted input into a qr// by eXile

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