v0 Security Scanner
v0 by Vercel generates production-quality UI components and full pages from text prompts. The generated code is visually polished but security is not its focus. Server Actions are created without auth checks, API routes lack input validation, and data fetching happens client-side without verifying the user has permission to see the data.
Because v0 outputs deploy-ready Next.js code, developers often push it straight to Vercel without a review pass. The result is live apps where anyone can call Server Actions directly, access API routes that should be protected, and read data belonging to other users through predictable URL patterns.
VibeArmor tests your deployed v0 app from the outside. We probe Server Actions, API routes, and data endpoints the same way an attacker would. Paste a URL and know in 3 minutes.
What VibeArmor detects in v0 apps
- Server Actions without authentication or authorization checks
- API routes with no input validation or sanitization
- NEXT_PUBLIC_ environment variables leaking sensitive configuration
- Client-side data fetching that bypasses server-side access controls
- Missing middleware auth guards on protected routes
No signup • Results in 3 minutes
How VibeArmor helps
Critical exploits
Exposed secrets, auth bypass, injection, and cross-user data access. These get apps hacked.
Active defenses
HTTPS, CSP, rate limiting, and cookie security. Real protections that stop real attacks.
Best practices
Informational items that do not affect your grade. Good to know, not urgent to fix.