[{"data":1,"prerenderedAt":198},["ShallowReactive",2],{"blog-checklists/v0-security-checklist":3},{"id":4,"title":5,"body":6,"category":173,"date":174,"dateModified":174,"description":175,"draft":176,"extension":177,"faq":178,"featured":176,"headerVariant":183,"image":184,"keywords":184,"meta":185,"navigation":186,"ogDescription":187,"ogTitle":184,"path":188,"readTime":184,"schemaOrg":189,"schemaType":190,"seo":191,"sitemap":192,"stem":193,"tags":194,"twitterCard":196,"__hash__":197},"blog/blog/checklists/v0-security-checklist.md","v0 Security Checklist: 12-Item Guide Before Using Components",{"type":7,"value":8,"toc":167},"minimark",[9,16,19,22,47,60,74,88,103,108,111,114,136,155],[10,11,12],"tldr",{},[13,14,15],"p",{},"v0 by Vercel generates React and Next.js UI components. Unlike full-stack generators, v0 focuses on frontend code. This 12-item checklist covers XSS vulnerabilities, dependency security, and input handling. 3 critical items must be fixed immediately, 5 important items before production, and 4 recommended items when you can.",[13,17,18],{},"AI-generated components are a huge time saver, but they sometimes include placeholder secrets, pull in packages you have never heard of, or skip input sanitization entirely. Treat v0 output the same way you would treat a pull request from a new contractor -- review it before it goes anywhere near production.",[20,21],"print-button",{},[23,24,26,31,35,39,43],"checklist-section",{"title":25},"Quick Checklist (5 Critical Items)",[27,28],"checklist-item",{"description":29,"label":30},"Look for YOUR_API_KEY, sk_test_, or placeholder values","Search for placeholder secrets",[27,32],{"description":33,"label":34},"This can execute arbitrary HTML/JS if not sanitized","Review dangerouslySetInnerHTML usage",[27,36],{"description":37,"label":38},"These can execute arbitrary code - avoid unless necessary","Check for eval() or Function() calls",[27,40],{"description":41,"label":42},"Check for known vulnerabilities in new dependencies","Run npm audit after installing",[27,44],{"description":45,"label":46},"User input should never be rendered as raw HTML","Verify form inputs are escaped",[23,48,51,54,57],{"title":49,"count":50},"Code Review","3",[13,52,53],{},"::checklist-item{label=\"Search for placeholder secrets\" description=\"Look for \"YOUR_API_KEY\", \"sk_test_\", or other placeholder values that should be replaced. How to secure API keys\"}\n::",[27,55],{"description":56,"label":34},"If the component uses dangerouslySetInnerHTML, verify the content is sanitized. How to prevent XSS",[27,58],{"description":59,"label":38},"These can execute arbitrary code. Avoid unless absolutely necessary. How to avoid eval()",[23,61,63,67,70],{"title":62,"count":50},"Dependencies",[27,64],{"description":65,"label":66},"Check what packages the component requires. Research unfamiliar ones before installing. How to audit npm packages","Review added npm packages",[27,68],{"description":69,"label":42},"Run: npm audit to check for known vulnerabilities in dependencies. How to fix npm vulnerabilities",[27,71],{"description":72,"label":73},"Check npm for last publish date. Avoid packages not updated in 2+ years. How to evaluate packages","Verify package maintenance status",[23,75,77,80,84],{"title":76,"count":50},"Input Handling",[27,78],{"description":79,"label":46},"User input displayed on page should be escaped. React does this by default, but check custom rendering. How to escape user input",[27,81],{"description":82,"label":83},"If component reads from URL params, verify they are validated before use. How to validate URL params","Check URL parameter handling",[27,85],{"description":86,"label":87},"If uploading files, verify type restrictions and size limits are implemented. How to secure file uploads","Review file upload components",[23,89,91,95,99],{"title":90,"count":50},"Integration",[27,92],{"description":93,"label":94},"If you have Content Security Policy headers, verify the component works without violations. How to configure CSP","Test with your CSP headers",[27,96],{"description":97,"label":98},"If component fetches external resources, verify your CORS configuration allows them. How to configure CORS","Check for CORS requirements",[27,100],{"description":101,"label":102},"onClick handlers should not include unsanitized user data. How to secure event handlers","Verify no inline event handlers with user data",[104,105,107],"h2",{"id":106},"v0-security-considerations","v0 Security Considerations",[13,109,110],{},"v0 differs from full-stack AI tools because it generates UI components, not complete applications. This means security concerns are focused on frontend issues: XSS vulnerabilities, unsafe dependency usage, and improper input handling.",[13,112,113],{},"The good news is that React (which v0 generates) escapes content by default, preventing most XSS attacks. The main risks come from using dangerouslySetInnerHTML, adding untrusted packages, or mishandling URL parameters and form inputs.",[115,116,117,124,130],"faq-section",{},[118,119,121],"faq-item",{"question":120},"Is v0 safe for production components?",[13,122,123],{},"v0 generates React/Next.js components that are generally safe, but you should review them before production use. Check for proper input handling, secure dependencies, and ensure no placeholder secrets were left in the code. React's default escaping prevents most XSS, but custom rendering needs review.",[118,125,127],{"question":126},"What should I check in v0 generated code?",[13,128,129],{},"Review the generated dependencies for known vulnerabilities (npm audit), check that user inputs are not used with dangerouslySetInnerHTML, verify no placeholder API keys exist, and ensure forms have proper validation on both client and server.",[118,131,133],{"question":132},"Does v0 introduce backend security risks?",[13,134,135],{},"v0 generates frontend components, not backend code. However, if you connect v0 components to APIs, ensure those APIs have proper authentication, authorization, and input validation. The component is only as secure as the backend it connects to.",[137,138,139,145,150],"related-articles",{},[140,141],"related-card",{"description":142,"href":143,"title":144},"Complete security guide for v0 components","/blog/guides/v0","v0 Security Guide",[140,146],{"description":147,"href":148,"title":149},"Frontend security for React apps","/blog/checklists/react-security-checklist","React Security Checklist",[140,151],{"description":152,"href":153,"title":154},"Full-stack Next.js security","/blog/checklists/nextjs-security-checklist","Next.js Security Checklist",[156,157,160,164],"cta-box",{"href":158,"label":159},"/","Start Free Scan",[104,161,163],{"id":162},"scan-your-full-application","Scan Your Full Application",[13,165,166],{},"Check your entire codebase for security issues, not just individual components.",{"title":168,"searchDepth":169,"depth":169,"links":170},"",2,[171,172],{"id":106,"depth":169,"text":107},{"id":162,"depth":169,"text":163},"checklists","2026-02-09","Security checklist for v0 by Vercel generated components. Check these 12 items before integrating AI-generated UI components into your production app.",false,"md",[179,181],{"question":120,"answer":180},"v0 generates React/Next.js components that are generally safe, but you should review them before production use. Check for proper input handling, secure dependencies, and ensure no placeholder secrets were left in the code.",{"question":126,"answer":182},"Review the generated dependencies for known vulnerabilities, check that user inputs are sanitized before rendering, verify no placeholder API keys exist, and ensure forms have proper validation.","green",null,{},true,"Security checklist for v0 components. 12 items to check before integration.","/blog/checklists/v0-security-checklist","[object Object]","HowTo",{"title":5,"description":175},{"loc":188},"blog/checklists/v0-security-checklist",[195],"Security Checklist","summary_large_image","PA6zPY4Y_XmJWRfkhZzPzoAfjchmVv_0YEAwmGKkZAI",1775843930385]