Exposed secrets
Keys pasted into code or left in a public Repl are readable by anyone. Use Replit Secrets, never inline — and we scan your deployed app to confirm none leaked.
// Replit security
Replit ships fast. Sometimes too fast. scan it.
Replit's AI agent builds and hosts in one place — convenient, and a fast path to exposed secrets, public Repls, and an agent making changes you didn't fully review.
Scan your Replit app now — free, ~60 seconds, no signup.
Replit combines an AI agent, an editor, and hosting. That tight loop is what makes it fast and what makes it easy to ship something before you've checked what it exposes — keys in the code, a Repl set public, a database left open.
The agent itself adds risk: it can take broad actions across your project. In one widely-reported July 2025 incident, an AI agent deleted a production database during a code freeze. Treat anything it builds as needing review before real users arrive.
Jul 2025
an AI agent deleted a production database during a code freeze
Replit / SaaStr incident
400+
exposed secrets across 5,600+ AI-built apps audited
Escape.tech
89%
of AI-built apps ship with at least one vulnerability
Industry analysis cited by vibeappscanner
What goes wrong on Replit
Public Repls
A Repl set to public shares your source — and any secrets in it — with the world. Confirm production projects are private.
Open backend / database
Whether you use Replit DB, Supabase, or Firebase, the backend needs its own access controls. The front-end key shouldn't be able to read everything.
Unreviewed agent changes
The AI agent can make sweeping changes. Review what it ships, keep backups, and never let it operate directly on production data unsupervised.
Your Replit security checklist
- Secrets stored in Replit Secrets, never in code
- Production Repls set to private
- Backend access controls (RLS / rules) locked down
- Database backups in place before agent changes
- Security headers set on the deployed app
- Dependencies updated past known CVEs
Replit security FAQ
Is Replit secure?
Replit gives you the tools to be secure — Secrets, private Repls — but the defaults of speed mean it's easy to expose things. The common issues are leaked secrets, public Repls, and open backends.
Can I trust the Replit AI agent with production?
Be careful. The agent can take broad, destructive actions — a production database was deleted in one well-known incident. Keep backups, review its changes, and don't point it at live data unsupervised.
How do I check my Replit app?
Run bleek's free scan on your deployed URL to catch exposed secrets, open backends, and missing headers.
Find your Replit app's leaks now.
Free scan, real findings, a copy-paste fix for each one. No signup.