ChurchCRM v4.5.4 - Reflected XSS via Image (Authenticated)

# Exploit Title: ChurchCRM v4.5.4 - Reflected XSS via Image (Authenticated)
# Date: 2023-04-17
# Exploit Author: Rahad Chowdhury
# Vendor Homepage: http://churchcrm.io/
# Software Link: https://github.com/ChurchCRM/CRM/releases/tag/4.5.4
# Version: 4.5.4
# Tested on: Windows 10, PHP 7.4.29, Apache 2.4.53
# CVE: CVE-2023-31699

Steps to Reproduce:

1. At first login your admin panel.
2. Then click the "Admin" menu and click "CSV Import '' and you will get
the CSV file uploader option.
3. now insert xss payload in jpg file using exiftool or from image
properties and then upload the jpg file.
4. you will see XSS pop up.