How to Secure Lovable

Step-by-step guide to securing your Lovable application. Learn how to protect against common vulnerabilities, configure security settings, and launch with confidence.

Why Security Matters for Lovable Apps

Lovable uses Supabase as its backend, which means your app's security heavily depends on proper Row Level Security (RLS) configuration. In the CVE-2025-48757 incident, 10.3% of Lovable applications (170 out of 1,645) had exposed user data due to misconfigured RLS policies.

Security Checklist

Follow these 14 steps to secure your Lovable application. Items marked as critical should be addressed before launch.

Enable Row Level Security (RLS)

Critical

Go to Supabase dashboard > Authentication > Policies and enable RLS on all tables containing user data.

Audit exposed API keys

Critical

Search your codebase for any hardcoded API keys, especially Supabase anon keys in client-side code.

Configure authentication properly

Critical

Set up email verification, password requirements, and session management in Supabase Auth settings.

Review environment variables

Critical

Ensure sensitive keys are in .env files and not committed to version control.

Test authentication flows

Critical

Verify login, logout, password reset, and session expiration work correctly.

Check for data exposure

Review API responses to ensure no sensitive data is leaked to unauthorized users.

Validate user inputs

Add input validation for forms to prevent XSS and injection attacks.

Configure CORS properly

Set appropriate CORS headers to restrict which domains can access your API.

Enable HTTPS

Ensure your deployed application uses HTTPS for all connections.

Set up error handling

Implement proper error handling that doesn't expose stack traces or internal details.

Review third-party integrations

Audit all external APIs and services for security implications.

Test with different user roles

Verify access controls work correctly for different user types.

Check for sensitive data in logs

Ensure no passwords, tokens, or PII are being logged.

Run automated security scan

Use VibeEval to automatically check for common vulnerabilities.

Common Vulnerabilities in Lovable Apps

Missing RLS Policies

Without Row Level Security, any user can read, modify, or delete any data in your database using the Supabase client.

Exposed API Keys

Hardcoded API keys in client-side code can be extracted and misused by attackers.

Insecure Authentication

Weak password requirements, missing email verification, or improper session handling.

Data Exposure

API responses returning more data than necessary, exposing sensitive user information.

Related Resources

Is Lovable Safe?

In-depth security analysis of the Lovable platform.

Lovable Security Checklist

Interactive pre-launch security checklist for Lovable.

Automate Your Security Checks

Don't manually verify each item. Let VibeEval scan your Lovable application and generate a comprehensive security report in minutes.

Scan Your Lovable App