Update stray queries to PDO-style parameters

models/Email.php

@@ -69,7 +69,7 @@ class Email
 		$row = Registry::get('db')->queryAssoc('
 			SELECT first_name, surname, emailaddress, reset_key
 			FROM users
-			WHERE id_user = {int:id_user}',
+			WHERE id_user = :id_user',
 			[
 				'id_user' => $id_user,
 			]);