Wordpress plugin current book 1.0.1 book title persistent crosssite scripting Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-07-14 | Type : webapps | Platform : php
This exploit / vulnerability Wordpress plugin current book 1.0.1 book title persistent crosssite scripting is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: WordPress Plugin Current Book 1.0.1 - 'Book Title and Author field' Stored Cross-Site Scripting (XSS)
# Date: 14/07/2021
# Exploit Author: Vikas Srivastava
# Vendor Homepage:
# Software Link: https://wordpress.org/plugins/current-book/
# Version: 1.0.1
# Category: Web Application

How to Reproduce this Vulnerability:

1. Install WordPress 5.7.2
2. Install and activate Custom Book
3. Navigate to Tools >> Current Book and enter the XSS payload into the Book and Author input field.
4. Click Update Options
5. You will observe that the payload successfully got stored into the database and when you are triggering the same functionality at that time JavaScript payload is executing successfully and we are getting a pop-up.