Security best practices for Lovable apps

1. 1

   Ask Lovable to add any secret keys (like for Stripe payments) securely, making sure they are only used by your server-side code.

   Secrets stored in your app's visible parts can be stolen by anyone, making your app vulnerable.

2. 2

   Move any checks that decide if a user can do something or if their input is valid from your app's visible parts to your server-side code.

   Checks done in the user's browser can be easily bypassed, letting users do things they shouldn't or submit bad data.

3. 3

   Review and set up 'Row-Level Security' (RLS) policies for your database tables, especially before you add real user data.

   RLS makes sure users can only see or change the data they are allowed to, like their own profile or team projects, preventing unauthorized access.

4. 4

   Ensure that all decisions about whether a user is logged in or has permission to do something are made by your server-side code.

   Authentication checks in the user's browser can be faked, allowing unauthorized users to access protected parts of your app.

5. 5

   If your app is for internal use only, set its visibility to 'workspace' and confirm it's not publicly available.

   This prevents your internal tools from being accessed by anyone outside your team or organization.

Review my Lovable app for security best practices. Specifically, check if any secrets are exposed in frontend code, if all critical validation and authentication logic runs server-side, and if Row-Level Security (RLS) policies are properly configured for my database. For internal apps, confirm project access is set to 'workspace'.

Frontend

The part of your app that users see and interact with in their web browser.

Backend code

The part of your app that runs on a secure server, hidden from users, where important logic and sensitive operations happen.

Edge Functions

Small pieces of backend code that run very close to your users, making your app faster and more secure for server-side tasks.

Row-Level Security (RLS)

A database feature that controls exactly which rows (individual entries) of data a user can see or change, based on rules you set.

Authentication

The process of verifying a user's identity, like checking their username and password to confirm they are who they say they are.

Authorization

The process of deciding what an authenticated user is allowed to do or access within your app.

Secrets

Sensitive pieces of information, like API keys or passwords, that should never be exposed to the public.

Server-side code

Code that runs on a server, not in the user's browser, used for secure operations like handling payments or validating data.

• Storing sensitive information like API keys directly in your frontend code, making them visible to anyone.
• Relying on checks performed only in the user's browser for security, as these can be easily bypassed.
• Not configuring 'Row-Level Security' (RLS) for your database, potentially allowing users to access data they shouldn't.
• Making authentication decisions (like if a user is logged in) only in the user's browser, which can be faked.
• Leaving internal applications publicly accessible instead of restricting them to your workspace.