What potential issue is the user facing with the "notes" file in the directory listing?

The potential issue the user is facing with the "notes" file in the directory listing is that the file may be accessible to anyone who knows the direct URL, which could pose a security risk if the notes contain sensitive information. To solve this issue, the user should restrict access to the "notes" file by using PHP to check if the user is authenticated before allowing access. 

<?php
session_start();

if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
    header('HTTP/1.1 403 Forbidden');
    exit;
}

// Your code to display the contents of the "notes" file goes here

Keywords

file permissions directory listing PHP fopen file_get_contents

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