WordPress WPFront Notification Bar 1.9.1.04012 Cross Site Scripting

`# Exploit Title: WordPress Plugin WPFront Notification Bar 1.9.1.04012 - Stored Cross-Site Scripting (XSS)  
# Date: 11/07/2021  
# Exploit Author: Swapnil Subhash Bodekar  
# Vendor Homepage:  
# Software Link: https://wordpress.org/plugins/wpfront-notification-bar/  
# Version: 1.9.1.04012  
# Tested on Windows  
# Category: Web Application  
  
How to reproduce vulnerability:  
  
1. Install WordPress 5.7.2  
2. Install and activate *WPFront Notification Bar* plugin.  
  
3. Navigate to *WPFront Notification Bar *>> Setting >> notification bar and  
fill the required data and enter the below-mentioned payload into the Custom  
CSS user input field.  
  
</textarea><script>prompt(1)</script>  
  
5. You will observe that the payload successfully got stored into the  
database and when you are triggering the same functionality in that time  
JavaScript payload is executing successfully and we are getting a pop-up.  
`