Are there any security risks or vulnerabilities associated with the current PHP code snippet for the contact form?

The current PHP code snippet for the contact form is vulnerable to email injection attacks. To prevent this, input validation should be implemented to ensure that the user-supplied email address is safe to use. This can be done by using PHP's filter_var function with the FILTER_VALIDATE_EMAIL filter. 

// Validate the email address
$email = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);
if (!$email) {
    // Handle invalid email address
    echo "Invalid email address";
    exit;
}

// Send the email using the validated email address
// Your existing code to send the email goes here

Keywords

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

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