What is a vibe coding security check?
A vibe coding security check is an independent assessment of a web application built partially or primarily using AI coding tools. It examines the deployed application for security weaknesses that may not be apparent during AI-assisted development.
What it checks
| Area | Question it answers |
|---|---|
| Authentication | Can someone get into an account they shouldn't? |
| Authorization | Can users access another user's data? |
| APIs | Are sensitive endpoints exposed or insufficiently protected? |
| Sensitive data | Could private information be unintentionally exposed? |
| Input security | Can malicious input manipulate your application? |
| Configuration | Are unsafe settings exposing unnecessary information or functionality? |
| Sessions | Are login sessions handled safely? |
| Known vulnerabilities | Are exposed components affected by known security issues? |
Why AI coding agents aren't enough
A coding agent such as Cursor, Claude Code or Codex works from the code it can see and the instruction it receives. Asking it to “make the app secure” produces improvements to the code it happens to look at. It does not observe how the deployed application behaves: which endpoints respond without authentication, whether one user can read another user's records, which headers the hosting platform sends, or which server versions are exposed. A security check tests the running application from the outside, then hands the results back to the agent as concrete instructions.
When you should run one
- Before opening sign-ups to the public or accepting the first paying customer.
- After adding authentication, payments, file uploads or an admin area.
- After a large refactor generated by an AI tool.
- When a customer, investor or partner asks whether the app has been tested.
What to do after finding a vulnerability
- Read the plain-English explanation and decide how urgent it is. High and critical findings come first.
- Copy the fix prompt into your AI coding tool and review the change it proposes.
- Deploy the fix, then re-scan to confirm the finding is gone.
- Keep the report. It is useful evidence when someone asks what you have done about security.
See a full example report or run a check on your own app.
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