As mentioned in the CB $cgi->Vars may cause problems - a safer way to build the params hash is: 
my %params = map { $_ => $cgi->param($_) } $cgi->param;

[download]
And beware of params that have more than one value, e.g. checkbox groups

Update: to allow for params with multiple values: 

my %params;
for my $name ($cgi->param) {
    my @values = $cgi->param($name);
    $params{$name} = @values > 1 ? \@values : $values[0];
}

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When further processing %params you will need to check if $param{$name} is an array reference.

In reply to Re: Escaping %params by tangent
in thread Escaping %params by DaisyLou

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