Is your Lovable app actually secure?
Lovable ships working apps fast. The parts that keep an app safe (database access rules, hidden keys, server headers) are easy to skip when the app already looks finished. This page explains what usually breaks on Lovable and lets you scan your live app right now.
Scan your Lovable app
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.
What breaks most often on Lovable apps
Almost every serious issue we see on Lovable apps falls into three buckets. The database is left open so anyone can read it. A secret key is sitting in the code the browser downloads. Or the site is missing the standard headers browsers use to block common attacks.
None of these show up while you use the app. It loads, it works, and it looks done. The only way to know is to check the live app the way an outsider would, which is exactly what the scanner below does.
The top Lovable security issues to check
- Publicly readable Supabase database (Row Level Security off)
- An API key or service key exposed in the client bundle
- Missing security headers (CSP, HSTS, X-Frame-Options)
- Source maps that let anyone download your original code
- Private files like .env served from the live site
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.
- Enable Row Level Security (RLS) on every table, especially the affected spot
- 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
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.
Full step-by-step fix guide, with a copy-paste block for each AI tool →
Common questions
Does Lovable make my app secure by default?
No. Lovable gets the app running, but it does not turn on database access rules or add security headers for you. Those are decisions about who is allowed to read what, and they have to be set on your project. A brand new Lovable app can work perfectly and still expose its whole database.
How do I check if my Lovable app is safe?
Paste your live Lovable URL into the scanner above. It looks at your app the way any visitor could: it reads the JavaScript your app ships, checks your response headers, and asks your database (anonymously) whether it hands back private rows. You get a plain-English report and a fix.
Is the scan safe to run on my live app?
Yes. Every check is read-only. It makes the same kind of requests a normal visitor's browser already makes. It never writes, deletes, logs in, or changes anything.