use HTTP::Request;
use LWP::UserAgent;

# Variables
#
my $url = "http://somedomain.com/cgi-bin/somescript.cgi?variouscharacters";
my $ua = new LWP::UserAgent;
my $res = $ua->request(POST $url);

if ($res->success) {
  print $res->content || die "Not possible\n";
}