Secure Web Apps Built with v0 & Next.js
v0 generates frontend UI components and Next.js full-stack prototypes. Verify that your production deployment has real backend authorization, secure headers, and protected server actions.
COMMON SECURITY RISKS
WHAT WE FREQUENTLY DETECT IN V0 BY VERCEL APPS
Server Actions Without Input Validation
v0 writes Next.js Server Actions with direct mutations, sometimes omitting Zod schema validation or user session verification.
Missing Content-Security-Policy (CSP)
Default Next.js applications deployed from v0 prototypes lack CSP headers, allowing inline script injections if user input is rendered.
Client-Side Data Leakage in RSC Payload
Accidentally returning entire database rows (including password hashes or email addresses) in React Server Component props sent to the browser.
HOW SCANMYVIBE HELPS
FIX PROBLEMS IN SECONDS WITH AI PROMPTS
Every finding comes with an actionable prompt tailored for v0 by Vercel developers to copy directly into Cursor or Claude Code.
// In next.config.js, add strict security headers:
headers: async () => [{
source: '/(.*)',
headers: [{ key: 'X-Frame-Options', value: 'DENY' }]
}]CHECK YOUR V0 BY VERCEL APP RIGHT NOW
Free automated vulnerability check. Zero install, results in 20 seconds.