Chevereto 3.17.1 - Cross Site Scripting (Stored)

# Exploit Title: Chevereto 3.17.1 - Cross Site Scripting (Stored)
# Google Dork: "powered by chevereto"
# Date: 19.04.2021
# Exploit Author: Akıner Kısa
# Vendor Homepage: https://chevereto.com/
# Software Link: https://chevereto.com/releases
# Version: 3.17.1
# Tested on: Windows 10 / Xampp

Proof of Concept:

1. Press the Upload image button and upload any image.
2. After uploading the image, press the pencil icon on the top right of the image and write "><svg/onload=alert(1)> instead of the title.
3. Upload the picture and go to the picture address.