Thanks,
I've changed the part that read 
unless ($file_in =~ /^[\w][\w\._-]*$/) {
    print "Insecure file_in\n";
    exit;
}

[download]
to ... 
if ($file_out =~ /^([\w][\w\._-]*)$/) {
    $file_out = $1;
}
else {
    print "Insecure file_out\n";
    exit;
}

[download]
And I also fixed the regexp that checked for double dots, from /^\.{2,}$/ to... /\.\./

In reply to Re: Re: Taint problem opening file to write by fireartist
in thread Taint problem opening file to write by fireartist

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