Seotoaster 3.2.0 - Stored XSS on Edit page properties

# Exploit Title: Seotoaster 3.2.0 - Stored XSS on Edit page properties
# Exploit Author: Hardik Solanki
# Vendor Homepage: https://www.seotoaster.com/
# Software Link: https://crm-marketing-automation-platforms.seotoaster.com/
# Version: 3.2.0
# Tested on Windows 10

XSS ATTACK:
Cross-site Scripting (XSS) is a client-side code injection attack. The
attacker aims to execute malicious scripts in a web browser of the victim
by including malicious code in a legitimate web page or web application.
The actual attack occurs when the victim visits the web page or web
application that executes the malicious code. The web page or web
application becomes a vehicle to deliver the malicious script to the user’s
browser. Vulnerable vehicles that are commonly used for Cross-site
Scripting attacks are forums, message boards, and web pages that allow
comments.

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

Vulnerable Parameters: Edit page properties

Steps to reproduce:
1: Navigate to "https://localhost/" and log in with valid credentials.
2: Then navigates/click on "Edit page properties".
3: Add the payload "*"><script>alert(document.cookie)</script>*", on "Page header H1 tag" field and click on "Save Page" button. Page Saved succesfully.
4: Hence XSS will get stored and trigger on the main home/main page.