Are Lovable websites secure?

Lovable includes built-in security scanning and API-key protection, but real security also depends on you setting up row-level security and role checks correctly — it isn't automatic just because you used Lovable.

How do I run a security audit on Lovable?

Open your project's Security view in Lovable to see automated scan results, then ask Lovable in chat to review RLS policies, role storage, and any exposed secrets in detail.

How do I secure a Lovable app before launch?

Before launch, verify RLS on every table, move roles into a dedicated user_roles table, confirm no secrets sit in front-end code, and run Lovable's Security view scan.

How do I check Supabase RLS?

Ask Lovable to list every table and its row-level security status and policies in plain language — Lovable Cloud users don't have Supabase dashboard access, so this has to go through chat.

Can users access my database?

Only through the access rules you (or your row-level security policies) allow — Lovable Cloud's database isn't publicly browsable, but a table without RLS enabled is effectively open to anyone with your app's public key.

Can users access other users' information?

Only if your row-level security policies are missing or too permissive — with correct RLS, a query for 'my orders' can only ever return rows owned by the logged-in user, regardless of what the front end sends.

How do I protect admin pages?

Check the user's role server-side (in the database query or Edge Function) using a dedicated user_roles table — hiding an admin link in the navigation menu doesn't stop someone visiting the URL directly.

How do I protect API keys?

Never put API keys in front-end code — store them as secrets used only inside server functions (Edge Functions), where the browser never sees them.

Where should secrets be stored?

In your project's server-side secrets store, used only inside Edge Functions — never in front-end code, client-side environment variables, or committed to your Git repository.

How do I secure Edge Functions?

Verify the caller's identity and role inside the function itself, validate all input, use secrets rather than hard-coded keys, and don't assume the front end already checked permissions.

How do I prevent database abuse?

Combine row-level security with rate limiting on writes, input validation, and CAPTCHA or similar checks on public forms — RLS stops unauthorised reads/writes, but it doesn't stop a legitimate-looking user from hammering an endpoint.

How do I rate-limit an API?

Add per-user or per-IP request limits inside your Edge Function (or via a Postgres table tracking recent requests), since Lovable doesn't apply rate limiting to your custom endpoints automatically.

Add a CAPTCHA (e.g. Cloudflare Turnstile) to public forms, validate inputs server-side, and rate-limit submissions — client-side-only checks like a hidden field are easy for real bots to bypass.

How do I prevent spam registrations?

Verify email addresses on sign-up, add a CAPTCHA to the registration form, rate-limit sign-up attempts per IP, and check the token server-side before creating an account.

How do I check a Lovable project for security vulnerabilities?

Open the project's Security view (or the workspace Security center) to run Lovable's built-in scan for exposed secrets, missing RLS, and vulnerable dependencies, then ask Lovable to fix what it flags.

What security checks should I do before launching?

Run Lovable's Security scan, verify RLS on every table, confirm secrets are server-side, check auth flows and admin permissions, and re-test payments before you Publish.

How do I make Lovable perform a security review without changing anything?

Explicitly tell Lovable to run in read-only review mode — ask it to report findings only and not touch any code, then decide what to fix yourself.

How do I check for exposed environment variables?

Last checked 31 Aug 2026

Short answer

Ask Lovable to search your codebase for hard-coded API keys and secrets in front-end files, then move anything sensitive into a server function or edge function.

Why this matters

Anything shipped in your front-end bundle — including Vite import.meta.env.VITE_* variables — is downloadable by anyone who opens your published site's dev tools. Only secrets that must run server-side (Stripe secret keys, third-party API keys, email provider keys) are actually at risk; the Supabase URL and anon key are designed to be public.

How to check

Open Chat and ask Lovable directly:

Search the whole codebase for any API keys, secrets or tokens that are hard-coded in front-end components, and tell me if any should be moved server-side.
Use the Code editor's search to look for suspicious patterns yourself: sk_, key=, Bearer , apiKey, .env.
Check any front-end fetch calls that pass a key directly in a header or query string — that key is exposed.
Run Lovable's built-in Security overview scan (see /questions/how-do-i-check-a-lovable-project-for-security-vulnerabilities), which flags exposed secrets automatically.

What to do if you find one

Move the call into a Supabase edge function (Lovable Cloud) or server function, and store the real key as a secret there — never in a front-end file.
Rotate the exposed key with the provider immediately; assume it's compromised once it has shipped in a public bundle.
Ask Lovable to update the front-end code to call your new server endpoint instead of the third-party API directly.

What usually goes wrong

Builders paste an API key into a prompt "to test quickly" and it ends up in a component. Always specify server-side storage up front.
VITE_ (or similarly public) prefixed env vars are bundled into client code by design — never put a secret behind one.
Rotating a key without updating the server function's secret leaves the app broken; do both together.

See also /questions/is-my-supabase-anon-key-safe-to-expose for the one common "leak" that's actually fine.

Sources

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