I am trying to set up osTicket v1.18.2 for a client. I am personally inexperienced with web security. I have disabled the client panel (via redirect), since in our use case, tickets are only going to be submitted directly by agents based on phone calls from customers. However, my client is concerned that the login form for the agent panel may be vulnerable to security flaws ( they probably just asked ChatGPT if there were any security flaws). Is there any chance that the login form page is vulnerable to attacks like SQL injection, or any other common type of security vulnerability? Thanks.