Cloudron 6.2 returnto cross site scripting (reflected) Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-09-22 | Type : webapps | Platform : multiple
This exploit / vulnerability Cloudron 6.2 returnto cross site scripting (reflected) is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: Cloudron 6.2 - 'returnTo ' Cross Site Scripting (Reflected)
# Date: 10.06.2021
# Exploit Author: Akıner Kısa
# Vendor Homepage: https://cloudron.io
# Software Link: https://www.cloudron.io/get.html
# Version: 6.3 >
# CVE : CVE-2021-40868


Proof of Concept:

1. Go to https://localhost/login.html?returnTo=
2. Type your payload after returnTo=
3. Fill in the login information and press the sign in button.