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IS LOVABLE SAFE?

Lovable generates complete web applications with Supabase backends from text descriptions. While it dramatically speeds up development, the auto-generated code frequently ships with critical security gaps including exposed service_role keys, missing Row Level Security policies, and no rate limiting. CVE-2025-48757 highlights a known vulnerability in Lovable-generated applications where Supabase service_role keys are leaked in client-side bundles.

72%
No CSP header
74%
No rate limiting
47%
No DMARC
447+
Sites analyzed
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TOP SECURITY RISKS

critical

Supabase service_role Key Exposure (CVE-2025-48757)

Lovable frequently embeds the Supabase service_role key in client-side JavaScript bundles. This key bypasses all Row Level Security policies and grants full database access to anyone who inspects the page source. Attackers can read, modify, or delete any data in the database.

critical

Missing Row Level Security Policies

Auto-generated Supabase tables often lack RLS policies entirely, or have overly permissive policies that allow any authenticated user to access all rows. Without proper RLS, a single authenticated user can access or modify data belonging to other users.

high

No Rate Limiting on API Routes

Lovable-generated API routes and Supabase Edge Functions do not include rate limiting. This leaves endpoints vulnerable to brute force attacks, credential stuffing, and denial-of-service through excessive request volume.

high

Environment Variables Exposed via NEXT_PUBLIC Prefix

Sensitive values like API keys and secrets are sometimes placed in NEXT_PUBLIC_ environment variables, making them visible in the client-side bundle. Any secret prefixed with NEXT_PUBLIC_ is shipped to every visitor's browser.

medium

Missing Security Headers

Lovable projects ship without Content Security Policy, X-Frame-Options, or other security headers. This leaves applications vulnerable to cross-site scripting, clickjacking, and content injection attacks.

SECURITY CHECKLIST

Audit all Supabase tables for Row Level Security policies and enable RLS on every table
Rotate any Supabase service_role keys that were exposed in client-side bundles
Move all secrets out of NEXT_PUBLIC_ environment variables to server-side only
Add Content Security Policy headers via middleware or vercel.json
Enable DNSSEC on your domain to prevent DNS spoofing
Add rate limiting to all API routes and authentication endpoints
Review API route authentication and ensure every endpoint verifies the user session
Check for exposed source maps in production builds and disable them
Verify that Supabase anon key is used client-side instead of service_role key
Add input validation on all form submissions and API inputs
UNPWNED checks all of the above automatically with 700+ security tests.

SCAN YOUR LOVABLE APP

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FREQUENTLY ASKED QUESTIONS

Is Lovable safe to use for production apps?

Lovable can be used for production apps, but the generated code requires a thorough security review before going live. The AI frequently produces code with exposed credentials, missing RLS policies, and no rate limiting. Run an UNPWNED scan after deploying to catch these issues automatically.

What are the main security risks with Lovable apps?

The most critical risk is Supabase service_role key exposure in client bundles (CVE-2025-48757), which gives attackers full database access. Other common issues include missing RLS policies, no security headers, and exposed environment variables. UNPWNED scans specifically detect all of these vulnerabilities in Lovable-generated apps.

Does Lovable add security headers automatically?

No, Lovable does not generate Content Security Policy, X-Frame-Options, or other security headers by default. You need to add these manually through middleware or configuration. UNPWNED checks for missing security headers and tells you exactly which ones to add.

How do I secure a Lovable app after generating it?

Start by rotating any exposed Supabase keys, then enable RLS on every table with proper policies scoped to authenticated users. Add security headers, move secrets server-side, and implement rate limiting on API routes. Run an UNPWNED scan to get a prioritized checklist of everything that needs fixing.

Can UNPWNED scan Lovable apps?

Yes, UNPWNED is specifically designed to catch the security issues common in AI-generated applications. It checks for exposed Supabase credentials, missing RLS, security header gaps, and dozens of other vulnerabilities. Deploy your Lovable app and scan the URL to get a full security report.

Data based on 447+ website scans. Last updated: 2026-04-06. Statistics reflect aggregate findings across all scanned websites, not Lovable exclusively.