Windsurf security audit
Using Windsurf? Audit these security gaps before production.
Windsurf scaffolds working features quickly, including the boring backend plumbing most builders never want to write themselves. The problem: working ≠ safe. Here are the patterns we see across Windsurf codebases.
Common problems
What we keep finding in Windsurf codebases.
Generated CRUD without real authorization
Windsurf often scaffolds working CRUD flows before proper ownership validation exists. Users can edit records they should only be able to view.
ExamplePATCH /api/projects/:idupdates any project by ID, with nowhere owner_id = currentUser.idin the query.Weak API boundaries
Generated endpoints trust frontend state too much. Role flags, IDs, and even price values get accepted from the client without verification.
Unsafe admin logic
Admin-only actions live too close to client logic — a flag on the user object, a boolean returned from an API. The flag can be flipped, the boolean can be replayed.
Prompt fixes
What to tell the model.
Paste these into your next conversation. They steer generation toward safer defaults — but they aren't a substitute for review.
For: Generated CRUD without real authorization
“Enforce ownership and authorization checks server-side for every create, read, update, and delete action.”
For: Weak API boundaries
“Treat the frontend as untrusted. Validate identity, permissions, and object ownership independently on the backend.”
For: Unsafe admin logic
“Move privileged actions into protected backend routes with explicit role verification and audit logging.”
Manual verification
The Windsurf checklist.
Run through each item by hand before you ship. If anything is unclear, treat it as a red flag, not a green light.
- Hit every PATCH and DELETE endpoint with an ID owned by another user.
- Confirm role checks happen server-side, not just on the user object the client receives.
- Audit each admin route for an explicit role assertion.
- Verify audit logs exist for every privileged action.
- Re-run the auth flow with a tampered JWT and confirm a 401.
If issues are already live
Damage control, in order.
If you suspect any of the above already shipped to real users, work the list top-to-bottom. Don’t skip rotation.
- 1Add ownership checks before announcing any other fix.
- 2Verify object-level permissions across the API surface.
- 3Remove frontend-only admin assumptions and re-test.
- 4Rotate exposed service credentials.
- 5Enable audit logging on privileged endpoints.
Why AI-generated fixes still fail
The model that wrote the bug rarely sees it.
Same blind spots
The patterns that produced the vulnerability are baked into the model's training. Asking it to audit itself reproduces the same assumptions.
Context windows lie
The model sees the file you paste, not your auth middleware, your RLS policies, or the route you forgot to protect. It can't review what it can't see.
Confidence ≠ correctness
AI fixes look polished and read well. That's a signal of fluency, not of safety. Real verification needs a human who can hit the endpoint.
Don’t ask AI to audit AI
You wouldn’t let an intern grade their own homework.
Most builders type “is this secure?” back into the same chat that wrote the code. You need independent verification — someone whose context isn’t poisoned by what just got generated. That’s Kleared.
Fast shipping creates fast attack surfaces.
Kleared catches what speed hides — ownership checks, role enforcement, and tamper-resistant admin paths — and opens fix-PRs in your repo.
Before you launch
Run a real human security review.
Not another prompt. Kleared checks the boring stuff that breaks production:
- auth
- permissions
- secrets
- uploads
- database exposure
- API security
- payment flows
- production configs
So you can ship without guessing.