Security Audit for Cursor-Built Apps
Cursor is the best AI code editor — but AI-generated code has blind spots. We've scanned hundreds of Cursor-built apps and found an average of 18 vulnerabilities per app.
Industry Data
Observed across scanned appsThe 6 Most Common Cursor Security Mistakes
AI-generated code ships faster but introduces consistent security blind spots that manual review misses.
Cursor's AI assistant often writes API keys and database credentials directly into source files. Even if later removed, they persist in git history forever.
Cursor generates auth code that checks permissions client-side only (e.g., localStorage-based admin checks) without corresponding server-side validation.
Cursor often generates database queries using string concatenation instead of parameterized queries, creating SQL injection vulnerabilities in every query.
Next.js middleware bypass, NEXT_PUBLIC_ env variable leaks, React Server Component data exposure - Cursor misses framework-specific security patterns.
AI-generated API routes rarely include proper input validation or sanitization, leaving them open to injection attacks and unexpected behavior under adversarial input.
Cursor may suggest older package versions with known vulnerabilities. We check every dependency against CVE databases in real-time as part of every scan.
How PolyDefender Fixes This
Purpose-built for Cursor apps — not generic security advice
PolyDefender vs. Generic Scanners
Generic Scanner
- ✗Finds: OWASP basics only
- ✗Requires: code or repo access
- ✗Advice: generic remediation docs
- ✗Misses: framework-specific Cursor patterns
- ✗Context: none — same for every app
PolyDefender for Cursor
- ✓Finds: Cursor-specific vulnerabilities
- ✓Requires: only your public app URL
- ✓Advice: Cursor-specific fix steps
- ✓Checks: git secrets, SQL injection, CVE deps
- ✓Context: built for AI-generated code patterns