Content Management System 1.0 Cross Site Scripting

`# Exploit Title:Content Management System 1.0 - 'First Name' Stored XSS  
# Exploit Author: Zhayi (Zeo)  
# Date: 2020-12-14  
# Vendor Homepage: https://www.sourcecodester.com/php/14625/content-management-system-using-phpmysqli-source-code.html  
# Software Link: https://www.sourcecodester.com/download-code?nid=14625&title=Content+Management+System+using+PHP%2FMySQLi+with+Source+Code  
# Affected Version: Version 1  
# Tested on: WINDOWS 10  
  
Step 1: Log in to the CMS with any valid user credentials.  
Step 2: Click on the logged in username on header and select Manage Account.  
Step 3: Rename the user First Name to  
"<script>alert(document.domain)</script>".  
Step 4: Update Profile and this will trigger the XSS.  
Step 5: Logout and login again and the page will display the domain name.  
  
`