Php Email Form Validation - V3.1 Exploit -

$to = "admin@example.com"; $subject = $_POST['subject']; $headers = "From: " . $_POST['email']; mail($to, $subject, "Message", $headers);

Email is sent to many recipients, turning the form into an open spam relay. php email form validation - v3.1 exploit

The exploit is relatively straightforward, with an attacker able to manipulate the email form validation process to send malicious emails. This can be achieved through various means, including: $to = "admin@example