Is Your Cursor-Built App Secure?
Cursor is the most popular AI coding assistant and it produces working code remarkably fast. But AI models optimize for function, not security. When you ask Cursor to "add a database query," it writes one that works but may use string concatenation instead of parameterized statements. When you ask for auth, it may check tokens client-side only.
The most dangerous pattern is secrets in code. Cursor frequently generates lines like const apiKey = "sk-..." directly in React components. These end up in the client bundle and are visible to every visitor via browser DevTools.
VibeArmor scans your deployed app the way an attacker would. We find what is actually exploitable in production, not what looks bad in source code.
What VibeArmor detects in Cursor-built apps
- Hardcoded API keys and secrets generated inline by the AI
- Missing server-side auth checks on API routes
- SQL queries built with string concatenation instead of parameterized statements
- NEXT_PUBLIC_ env vars leaking sensitive backend values
- Overly permissive CORS and missing input validation
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.
Related reading
- The 7 Most Common Vulnerabilities in AI-Generated Code
Hardcoded secrets, SQL injection via string concatenation, and 5 more patterns Cursor produces.
- Vibe Coding Security Checklist: 15 Things to Check Before You Ship
Run through this checklist before every deploy to catch what Cursor misses.
- 5 Security Fixes Every Vibe Coder Should Know
Paste these fixes into Cursor to resolve the most common security issues in minutes.
- Vibe Coding Security Risks — The Complete 2026 Guide
How Cursor compares to Lovable, Bolt, and v0 for security output quality.