Lovable is great at turning a prompt into a running app. What it does not do is stop and ask whether the database it wired up is actually locked down. Because Lovable apps lean on Supabase, the single most important question is whether Row Level Security is on for every table, since the anon key that ships to the browser is public by design.
How secure are Lovable apps?
We scanned 299 public repos generated by Lovable. 35.1% had at least one high-severity finding, and Lovable apps were roughly twice as likely to have one as the Bolt apps in the same study. The breakdown is in the Lovable and Bolt scan. The platform itself is not the problem. The 2025 incident tracked as CVE-2025-48757 affected 170+ individual apps that shipped without the database rules that decide who can read what; read the full account in Is Lovable safe?
Scan your own app for issues like these
Paste your live URL. We check what your app serves publicly for exposed keys and misconfigurations. No account, no install.
What tends to go wrong in Lovable apps
- Supabase tables with Row Level Security off, readable by anyone with the public anon key
- Keys or config exposed in the frontend bundle
- Missing authorization checks on generated data access
- Fallback secrets in environment lookups that become predictable production secrets
How to check your Lovable app in five minutes
- Run Lovable's built-in security scan and fix what it flags.
- Paste your published URL into the free Supabase RLS checker to see whether a Supabase key is exposed. It is passive and needs no account.
- Scan the code: paste the public GitHub repo URL into the free scanner. Every finding comes with a paste-ready fix prompt for Lovable.
- Scan the live site with the website vulnerability scanner for keys in the JavaScript, dashboards that render without a login and exposed environment files.
- Work through the RLS checklist for AI apps to close the gaps, then re-scan.
Lovable's built-in scan versus an independent scan
Use both. The built-in scan lives where you build and is the right first step. An independent scan adds the view from outside: what the published app actually serves to a logged-out visitor, and what the repo contains. In our study of 4,740 live AI-built apps, 261 served something private to a logged-out visitor, and none of that needed an exploit. No scanner guarantees an app is secure, so also test with two separate accounts to confirm one user cannot read another's records. For how the main tools compare, see the best AI security scanners.
Frequently asked questions
What is the best security scanner for Lovable apps?
Use two layers. Start with Lovable's own built-in security scan, which is free. Then add an independent scan that looks at the app from outside, the way a visitor would. Prbl does that for free with no account: paste your Lovable app URL to check the live site, or a public GitHub repo URL to check the code. Aikido and CheckVibe are other options; see the comparison at /best/ai-security-scanners.
Does Lovable have a built-in security scan?
Yes, Lovable includes its own security scanning, and you should run it before you publish. A scan run inside the platform that generated the app is a good first pass but a second opinion is worth having, because it checks what is actually served to the public, not only what the project contains.
Is my Lovable app secure?
Not by default. Lovable builds the login screen quickly but does not always set up the database rules that decide who can read what. In our scan of 299 public Lovable repos, 35.1% had at least one high-severity finding. Check three things: Row Level Security on every Supabase table, no secret keys in the frontend bundle, and an authorization check on every route that returns data.
What's the single most important thing to check in a Lovable app?
Whether Row Level Security is on for every Supabase table. Lovable apps ship a public anon key by design; RLS is what decides whether that key can read your whole database or nothing. A missing policy was the root cause of CVE-2025-48757, which exposed data from 170+ Lovable apps.
What's the fastest way to check a Lovable app specifically?
Paste your published Lovable URL into the free Supabase RLS checker. It reads only what your app already serves to any visitor, and tells you whether a Supabase key is exposed. To prove whether a table is actually readable, verify you own the domain and run the full scan.