What are the potential risks of allowing users to edit hidden input fields in PHP forms?

Allowing users to edit hidden input fields in PHP forms can pose a security risk as they can manipulate the data being sent to the server. This can lead to potential vulnerabilities such as injection attacks or unauthorized data modification. To mitigate this risk, it is important to validate and sanitize all input data on the server-side before processing it. 

// Validate and sanitize hidden input field data before processing
$hidden_field_data = isset($_POST['hidden_field']) ? $_POST['hidden_field'] : '';
$validated_data = filter_var($hidden_field_data, FILTER_SANITIZE_STRING);

// Proceed with processing the validated data
// Your code logic here

Keywords

security input validation cross-site scripting form manipulation data integrity

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