title: xml vulnerabilities
body: <p>xml has been the backbone of the service oriented application(SOA) and it will be a useful one in the coming future.
  As xml is easy , flexible, it can be easily made vulnerable and the attackers can use it for their own purpose.
  As such some of the attacks by are <strong>coercive parsing attack, xml external entity(XEE) attack, xml dos(xdos) attack, xml bombs.</strong><br>
  can any one tell in detail about these attacks.<br>
  how could one can simulate these attacks practically in a single system?</p>