Replit Security Audit
Built your app with Replit? We find the security issues AI missed.
Replit combines a cloud IDE with an AI coding agent that can generate entire applications, install dependencies, and deploy them to production. Its agent mode can handle complex multi-step tasks autonomously. The convenience of instant deployment means code often goes live without review, and the generated applications frequently contain hardcoded secrets, missing authentication on API routes, and insecure default configurations.
Common Replit Security Issues
These are the vulnerabilities we most frequently find in Replit-generated projects.
Secrets stored in Replit environment without .gitignore
criticalWhen projects are exported from Replit or pushed to GitHub, environment secrets that were stored in Replit's secrets manager can end up committed to the repository in .env files.
Unauthenticated API endpoints
criticalExpress and Flask routes generated by Replit's agent often lack authentication middleware entirely, allowing anyone with the URL to access or modify data.
SQL injection in database queries
criticalDatabase interactions frequently use string concatenation or template literals instead of parameterised queries, creating direct SQL injection vulnerabilities.
Default debug mode in production
highApplications deploy with debug mode enabled, verbose logging active, and development-only middleware running, exposing internal application details.
Insecure session configuration
highSession management uses default or weak secret keys, missing secure/httpOnly cookie flags, and excessively long expiration times.
What We Check
Our Replit audit covers every critical security area in your application.
Authentication & Sessions
API Route Security
Database Security
Input Validation
Environment & Secrets
Third-party Integrations
Headers & CORS
Error Handling
Secure Your Replit App
Get a professional security audit tailored to Replit-generated code. Reports delivered within days.
Replit Audit FAQ
Is Replit code secure?
Replit generates functional code quickly, but like all AI coding tools, it often prioritises getting things working over security best practices. Common issues include exposed API keys, missing input validation, and insecure database configurations. Our audits specifically target the patterns Replit tends to produce.
What are common Replit security issues?
The most frequent issues we find in Replit projects include: secrets stored in replit environment without .gitignore, unauthenticated api endpoints, sql injection in database queries. These are well-documented patterns that our audit process specifically checks for.
Do I need an audit for my Replit app?
If your Replit app handles user data, payments, or any sensitive information, an audit is strongly recommended before going to production. Even simple apps can have critical vulnerabilities that AI tools introduce without warning. Our Security Scan package is a great starting point.
How long does a Replit audit take?
Our Security Scan takes 3 business days, the Full Audit takes 7 business days, and the Production Ready package takes 10-12 business days. The timeline depends on the size and complexity of your codebase, not which tool generated it.