Security Scanner for v0.dev Apps
v0.dev by Vercel generates production-ready React and Next.js UI components from text and image prompts. While the generated UI is polished, the underlying code can introduce security vulnerabilities · especially around user input handling, missing headers, and secret management. SimplyScan catches these before they reach production.
Top Vulnerabilities in v0.dev Apps
- React XSS Patterns · v0-generated components may use dangerouslySetInnerHTML for rendering dynamic content or fail to sanitize user inputs passed to DOM attributes.
- Missing Content Security Policy · Generated apps typically don't include CSP headers, allowing inline scripts and external resource loading that enable XSS and data exfiltration.
- Client-Side Secret Exposure · When integrating v0 components with backends, API keys may end up in client components instead of server-side API routes.
- Insufficient Input Sanitization · AI-generated form components often pass user input directly to state or APIs without validation, creating injection risks.
- Missing Security Headers · v0-generated apps deployed on Vercel may lack X-Frame-Options, HSTS, and other protective headers unless manually configured.
How SimplyScan Helps
- 51+ automated security and speed checks
- GitHub repository scanning for source-level issues
- Actionable fix guidance with severity ratings
- Downloadable PDF reports