What are the potential pitfalls of transferring data between different windows in a PHP application?

Transferring data between different windows in a PHP application can lead to potential security vulnerabilities, such as data leakage or injection attacks. To mitigate these risks, it's important to properly sanitize and validate any data being transferred between windows to prevent malicious code execution. 

// Sanitize and validate data before transferring between windows
$data = filter_input(INPUT_POST, 'data', FILTER_SANITIZE_STRING);

// Transfer data between windows using sessions
session_start();
$_SESSION['data'] = $data;

// Redirect to another window
header("Location: new_window.php");
exit;

Keywords

Cross-window communication PHP sessions cookies AJAX security vulnerabilities

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