What are potential pitfalls when trying to resume a session using a session ID in PHP?

Potential pitfalls when trying to resume a session using a session ID in PHP include not verifying the session ID before resuming the session, leading to potential security risks such as session hijacking. To mitigate this risk, always verify the session ID before resuming the session. 

<?php

// Start or resume session
session_start();

// Verify session ID before resuming session
if (isset($_GET['session_id']) && $_GET['session_id'] === session_id()) {
    session_commit();
    session_id($_GET['session_id']);
    session_start();
} else {
    // Invalid session ID, handle accordingly
}

?>

Keywords

session ID session resume PHP session hijacking security vulnerability

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