What are the potential issues with using hidden fields in PHP forms for passing data between pages?

Potential issues with using hidden fields in PHP forms for passing data between pages include security risks such as data tampering and exposure of sensitive information. To mitigate these risks, it is recommended to use server-side validation and authentication checks to verify the data being passed. 

<?php
// Validate and sanitize the data before processing
if(isset($_POST['hidden_field'])) {
    $hidden_data = $_POST['hidden_field'];
    // Perform necessary validation and authentication checks here
} else {
    // Handle the case where the hidden field is not set
}
?>

Keywords

hidden fields data passing security risks form manipulation cross-site scripting

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