What are the potential security risks associated with processing form data in PHP scripts?

Potential security risks associated with processing form data in PHP scripts include SQL injection, cross-site scripting (XSS), and CSRF attacks. To mitigate these risks, it is important to properly sanitize and validate user input before processing it in the script. 

// Sanitize and validate form data before processing
$name = isset($_POST['name']) ? htmlspecialchars($_POST['name']) : '';
$email = isset($_POST['email']) ? filter_var($_POST['email'], FILTER_VALIDATE_EMAIL) : '';
$message = isset($_POST['message']) ? htmlspecialchars($_POST['message']) : '';

// Process the sanitized and validated data
// (Add your processing logic here)

Keywords

SQL injection cross-site scripting data validation input sanitization secure coding practices

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