Yes, they have used etomite & the following code for handling special chars:
$username = preg_replace("/[^\w\.@-]/", "", htmlspecialchars($_POST['username']));
$givenPassword = preg_replace("/[^\w\.@-]/", "", htmlspecialchars($_POST['password']));
Now, is it possible to inject? Probably not!
Forum:
SQL and Code Injection