WordPress Plugin Smart Slider-3 3.5.0.8 - 'name' Stored Cross-Site Scripting (XSS)

# Exploit Title: WordPress Plugin Smart Slider-3 3.5.0.8 - 'name' Stored Cross-Site Scripting (XSS)
# Exploit Author: Hardik Solanki
# Date: 05/06/2021
# Software Link: https://wordpress.org/plugins/smart-slider-3/
# Version: 3.5.0.8
# Tested on Windows

*How to reproduce vulnerability:*

1. Install WordPress 5.7.2
2. Install and activate the "*Smart Slider 3" Version 3.5.0.8* plugin
3. Navigate to "*Dashboard* and create a "*New Project*".
4. Enter the JavaScript payload "*<script>alert(document.cookie)</script>*" into the "*Name*" field.
5. You will observe that the Project has been created with malicious
JavaScript payload "<script>alert(document.cookie)</script>" and hence
project has been* created/stored* and thus JavaScript payload is executing
successfully.

*XSS IMPACT:*
1: Steal the cookie
2: User redirection to a malicious website