Web Application Firewall XML/JSON message invalid or malformed

When a XML/JSON message is invalid or malformed it could conduct to errors in parsing allowing an attacker to find a vulnerable entry point in the web service.

When a malformed or invalid XML/JSON message is parsed by the application, it can conduct to memory corruption allowing an attacker to send malicious payloads in order to execute remote commands or make the application crash.

The web server must validate the XML/JSON message before trying to parse it and drop the request when an invalid or malformed payload is received.