Lovable App Security Audit

What it covers, what it typically finds, and how to run one in under 60 seconds.

What a Lovable security audit covers

A Lovable security audit covers four dimensions — the same four we check on every app, regardless of how it was built. For Lovable apps specifically, Security and Monitoring are where the critical findings concentrate.

1. Security (highest risk for Lovable apps)

• Supabase row-level security: Is it enabled on every table? Are policies owner-scoped (not USING (true))? This is the CVE-2025-48757 class — missing RLS means any authenticated user (or anonymous request) can read all data in your database.
• Service role key exposure: Is it in any client-side code or Git history? The service role key bypasses all RLS. If it's in a browser bundle, any visitor can dump your entire database.
• API key leakage: OpenAI, Stripe, SendGrid, Anthropic secret keys in your JavaScript bundle, readable by anyone who views source.
• CSRF protection: Missing in 78% of apps we scan. Lets attackers trigger authenticated actions on your users' behalf. CWE-352.
• Rate limiting on auth endpoints: /login, /signup, /reset-password accepting unlimited requests. Brute-force-able in hours. OWASP A07:2021.
• HTTP security headers: Content-Security-Policy, X-Frame-Options, Strict-Transport-Security — absent by default. Blocks clickjacking and script injection when configured.

2. Reliability

• Uncaught exceptions exposing stack traces or internal file paths to users
• Supabase Edge Functions that don't verify the caller's JWT
• No graceful degradation when Supabase, Stripe, or any external service is unavailable

3. Performance

• N+1 query patterns from Supabase (one query per row — works at 100 users, fails at 10,000)
• Missing database indexes on frequently filtered columns
• Oversized client-side bundles (unused dependencies shipped to the browser)

4. Monitoring

• Error tracking absent (no Sentry or equivalent — you learn about failures from support tickets)
• No uptime checks configured
• No alerting on payment failures or authentication spikes

CVE-2025-48757 — the Lovable RLS class

In May 2025, security researcher Matt Palmer documented CVE-2025-48757: 170+ Lovable-generated apps in production had Supabase row-level security disabled. The anon key — which is public by design, embedded in the client JavaScript — was being used to query tables without any RLS policies restricting access.

The attack required no login, no exploit, and no technical sophistication. A direct REST API call to the Supabase endpoint returned every row in every table: user emails, payment records, private content, API keys stored in the database.

This is still the most common critical finding in Lovable apps we scan. The 2026 rate is lower than 2025 (awareness has increased), but we still flag it in the majority of first-time scans.

What an LRC Lovable audit finds, in numbers

Based on scans run through launchreadycode.com as of June 2026:

• Supabase RLS disabled or misconfigured: majority of first-time scans
• Rate limiting absent on auth endpoints: present in the large majority of apps scanned
• CSRF protection missing: 78% of apps
• HTTP security headers absent: 78% of apps
• No error tracking configured: majority of apps

How to run a Lovable security audit

Option 1 — Free scan (URL-based, 60 seconds)

Paste your live URL at launchreadycode.com. No code access required. No signup. You get a Launch Readiness Score /100 across all four dimensions plus the top findings. Takes about 60 seconds.

Option 2 — Full audit report ($499 one-time)

The Launch Readiness Audit Report covers every finding with CVSS v3 severity, exact file references where applicable, and specific recommended fixes. Delivered in under 2 minutes. OWASP Top 10 · CWE Top 25 · CVSS v3 methodology.

Option 3 — SQL self-check (free, manual)

Run these three queries in your Supabase SQL editor to diagnose the most critical gap:

-- Tables with RLS disabled (publicly accessible)
SELECT schemaname, tablename, rowsecurity
FROM pg_tables WHERE schemaname = 'public'
ORDER BY rowsecurity, tablename;

-- Dangerously permissive policies (anyone can access)
SELECT tablename, policyname, cmd, qual
FROM pg_policies
WHERE schemaname = 'public' AND qual = 'true';

Pre-launch security checklist for Lovable apps

1. Enable RLS on every Supabase table. Write policies scoped to auth.uid(), not USING (true).
2. Move every secret key (OpenAI, Stripe, Anthropic, service_role) to server-side environment variables. Rotate any key that was ever in the client bundle.
3. Add rate limiting on /login, /signup, /reset-password, and any AI or payment endpoint.
4. Set HTTP security headers: Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Strict-Transport-Security.
5. Add CSRF protection on every state-changing API route.
6. Configure error tracking (Sentry free tier works) and uptime monitoring (UptimeRobot free tier).

This list addresses the six most common critical and high-severity findings. An LRC scan checks all of these plus 40+ additional vectors across reliability, performance, and monitoring.

Frequently asked questions

Is Lovable itself unsafe?

No. Lovable is a well-engineered builder. The security gaps come from configuration defaults — Supabase ships with RLS off, HTTP headers require explicit middleware, and rate limiting requires implementation. These are standard infrastructure hardening steps that fall outside the scope of any AI builder.

Does Lovable's built-in security scanner catch these issues?

Lovable's own scanner checks for the presence of RLS on tables but does not verify that policies are correctly scoped, does not check for secret key exposure in the bundle, and does not test rate limiting, CSRF, HTTP headers, or monitoring configuration. An independent scan is needed for a complete picture.

How long does it take to fix the issues found?

The six most common critical issues are all fixable in under 2 hours total: Supabase RLS (30–60 min), secret rotation (20 min), HTTP headers (10 min), rate limiting (20 min), CSRF middleware (10 min), error tracking setup (10 min). The scan tells you exactly what to fix. Our Code Care DFY Technical Setup ($1,999 setup fee + $2,999/mo) implements all of it for you.

Do you need code access to run a Lovable security audit?

No. The LRC scanner is URL-based — it tests what is publicly exposed from your live app, which is where real attackers start. No GitHub access, no source code, no deployment credentials required.

Sources: CVE-2025-48757 (Matt Palmer / NVD, May 2025); OWASP Top 10 2021; CWE Top 25 2024; Supabase documentation. This page provides general security guidance, not a certification or guarantee.