Can Lovable apps be hacked?

Yes, but usually not in the way the word suggests. The common problems in Lovable apps are not someone breaking through a firewall. They are misconfigurations that let anyone read your data or use your keys with a completely normal request.

The three that come up most: a Supabase database with no access rules, so anyone can read your tables; a secret key left in the browser code, so anyone can copy it; and missing security headers, so common browser attacks are easier. None of these need special tools. Someone just has to look.

The good news is that the same thing that makes them easy to exploit makes them easy to check and fix. You can scan your live app and see exactly what an outsider would find.

See what an outsider would find on your Lovable app

Read-only. It makes the same kind of requests any visitor's browser already makes.

What it means

Your database tables can be read by anyone, not just logged-in users. Someone could open your app's data — customer emails, orders, private records — without ever creating an account.

Why AI tools cause it

Supabase only protects a table once you turn on Row Level Security (RLS) and write access rules for it. AI tools frequently build a working app without doing that, so the tables are wide open by default.

How xlogs checks it

xlogs finds your public Supabase URL and anon key in your app (the same ones your frontend uses), asks the database as an anonymous user which tables it can read, and flags any that return real rows. Read-only: it never writes or deletes.

How to fix it

The goal: Row Level Security is enabled on every table, with policies so a table only returns rows to users allowed to see them; no table returns private data to an anonymous request.

  1. Enable Row Level Security (RLS) on every table, especially the affected spot
  2. Add a policy per table so only authenticated users can read/write their own rows (keep intentionally-public tables public on purpose)
  3. Re-check that an anonymous request no longer returns private rows
Paste this to your AI coding tool (Lovable, Cursor, Claude Code):
In my app (the spot the scan shows): anyone can read this database table. Please make this true: Row Level Security is enabled on every table, with policies so a table only returns rows to users allowed to see them; no table returns private data to an anonymous request. Steps: Enable Row Level Security (RLS) on every table, especially the spot the scan shows; Add a policy per table so only authenticated users can read/write their own rows (keep intentionally-public tables public on purpose); Re-check that an anonymous request no longer returns private rows. Then tell me exactly what you changed, and do not print any secret values back to me.

Then verify: After you deploy the policies, xlogs repeats the same anonymous read test and confirms the table no longer returns data without a login.

Common questions

What is the most common way a Lovable app gets exploited?

An open database is the most common. When Row Level Security is off, anyone with the app's public key (which ships in the browser) can read the tables directly. No hacking required, just a normal request to the database.