Base44

Base44 Security Best Practices

Protect your Base44-built application with these essential security practices. From secret management to authentication hardening.

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Base44 turns prompts into working applications fast, but the generated code prioritizes functionality over security. API keys end up in frontend bundles, authentication flows lack rate limiting, and input validation is often missing entirely. These best practices address the specific risks of prompt-to-code development.

Quick Wins

Search generated code for 'sk-', 'apiKey', and 'api_key' to find exposed secrets

Add .env to .gitignore before creating any environment files

Test each API endpoint by changing resource IDs to detect IDOR vulnerabilities

Run npm audit to find and fix vulnerable dependencies

Verify CORS is set to your specific domain, not '*'

Security Best Practices

#1Move All Secrets to Environment Variables

critical

Base44-generated code frequently embeds API keys (OpenAI, Stripe, database credentials) directly in frontend JavaScript. Extract every secret and move it to server-side environment variables.

Implementation

Search generated code for 'sk-', 'api_key', 'apiKey', 'secret'. Use your deployment platform's environment variable settings.

Don't do this

const openaiKey = 'sk-proj-abc123...'

Do this instead

const openaiKey = process.env.OPENAI_API_KEY

#2Review AI-Generated Authentication Code

critical

Base44's generated auth flows often lack rate limiting, account lockout, and proper session expiration. These gaps enable brute-force attacks and session hijacking.

Implementation

Add rate limiting to login endpoints (e.g., 5 attempts per minute), enforce session timeouts, and verify password hashing uses bcrypt or argon2

#3Add Authorization Checks to Every Endpoint

critical

Generated API routes may verify the user is logged in but not that they own the requested resource. This creates IDOR vulnerabilities where User A can access User B's data.

Implementation

Add user_id checks to all database queries — verify the authenticated user owns the resource they're requesting

#4Validate All User Input Server-Side

high

Base44-generated code often trusts user input directly. Add server-side validation for type, length, and format on every endpoint that accepts data.

Implementation

Use validation libraries like zod or joi for all incoming data at every API endpoint

Don't do this

const { email, name } = req.body;
await db.insert({ email, name });

Do this instead

const schema = z.object({ email: z.string().email(), name: z.string().max(100) });
const { email, name } = schema.parse(req.body);
await db.insert({ email, name });

#5Configure Security Headers

high

Base44 doesn't generate security header configuration. Add Content-Security-Policy, HSTS, and X-Frame-Options through your hosting platform.

Implementation

Add headers in your hosting configuration (Vercel headers(), Netlify _headers, etc.)

#6Remove Debug Routes Before Production

medium

Generated code may include test endpoints, debug logging, or admin routes without authentication. Remove or protect these before deploying.

Implementation

Search for /debug, /test, /admin routes and either remove them or add authentication middleware

Common Mistakes to Avoid

Leaving API keys in generated frontend code

Why it's dangerous:

Anyone can view your JavaScript bundles and extract API keys to abuse your services

How to fix:

Search for all key patterns and move to server-side environment variables

Deploying without reviewing generated auth code

Why it's dangerous:

AI-generated authentication often lacks rate limiting, enabling brute-force attacks

How to fix:

Add rate limiting, account lockout, and proper session management to all auth endpoints

Trusting that generated code validates input

Why it's dangerous:

Base44 generates functional code but rarely adds input validation, enabling injection attacks

How to fix:

Add zod or joi validation to every API endpoint that accepts user data

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Frequently Asked Questions

How do I find hardcoded secrets in Base44 code?

Search your codebase for common key patterns: 'sk-' (OpenAI), 'sk_live' (Stripe), 'api_key', 'apiKey', 'secret', and 'password'. Base44's prompt-to-code generation embeds these directly in source files. Move all found secrets to server-side environment variables.

Does Base44 generate secure authentication?

Base44 generates functional auth but typically skips security hardening. You'll need to add rate limiting to login endpoints, implement account lockout after failed attempts, set proper session timeouts, and ensure passwords are hashed with bcrypt or argon2.

What should I check before launching a Base44 app?

1) All API keys moved to environment variables, 2) Auth code reviewed for rate limiting and IDOR, 3) Server-side input validation on all endpoints, 4) Security headers configured, 5) Debug routes removed, 6) Run a VAS security scan to catch anything you missed.

Related Base44 Security Resources

Base44 Security Overview Base44 Security Issues Base44 Security Risks Is Base44 Safe?

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Last updated: February 2026