Is your Cursor-built app secure once it is live?
Cursor helps you write the code; you deploy it yourself. This scanner checks the result: the live, deployed app. It looks for the mistakes that survive into production, like a key that made it into the browser bundle or a database that answers anonymous requests.
Scan your deployed app
What it means
A password-like key that is supposed to stay private is sitting in your app where other people can find it. Anyone who copies it can act as you — run up bills, read your data, or send email in your name.
Why AI tools cause it
AI coding tools often paste an API key straight into a file to make something work, instead of hiding it in a private environment variable. It runs fine, so nothing warns you.
How xlogs checks it
xlogs scans your live JavaScript against 9 key formats covering Stripe, OpenAI, Anthropic, AWS, Google, GitHub, Slack, private key blocks, and Supabase service_role tokens.
What to check on a Cursor-built app that is live
The fastest path to a working feature is not always the safe one, and AI-written code sometimes takes it: a secret pasted where the browser can read it, a database call with no access rules behind it, or a build that ships source maps. Those are exactly the things a scan of the deployed app can catch.
This checks your live URL only. Source-level issues like SQL injection or unsafe HTML are found by reading the code, not the deployed site, so they are a separate job from this live scan.
The top issues to check on a deployed Cursor app
- An API key or service key exposed in the client bundle
- A database that returns private rows to anonymous requests
- Missing security headers (CSP, HSTS, X-Frame-Options)
- Public source maps or private files served from the live site
How to fix it
The goal: The key is stored only in a server-side secret / environment variable, never in code or the client bundle, and the exposed value has been rotated (regenerated) because the old one is public.
- Move the key's value into a server-only environment variable
- Remove the literal value from the code and any client-side bundle (the affected spot)
- Make sure the .env file is in .gitignore
- Rotate (regenerate) the key at the provider — assume the old one is compromised
In my app (the spot the scan shows): a secret key is exposed. Please make this true: The key is stored only in a server-side secret / environment variable, never in code or the client bundle, and the exposed value has been rotated (regenerated) because the old one is public. Steps: Move the key's value into a server-only environment variable; Remove the literal value from the code and any client-side bundle (the spot the scan shows); Make sure the .env file is in .gitignore; Rotate (regenerate) the key at the provider — assume the old one is compromised. Then tell me exactly what you changed, and do not print any secret values back to me.
Then verify: After you deploy the fix, xlogs re-scans your live app and your files and confirms the key is no longer present.
Full step-by-step fix guide, with a copy-paste block for each AI tool →
Common questions
Can xlogs scan my Cursor project directly?
Not the local project. This web scanner checks a deployed URL, so point it at your live app once it is online. It finds the issues that reach production: exposed keys, an open database, missing headers, and public source. Source-only issues like SQL injection are a separate, code-reading check.
Why check the live app if I can read the code in Cursor?
Some problems only appear once the app is built and deployed: which secrets ended up in the browser bundle, whether source maps shipped, and how your database actually responds to an anonymous request. The live scan sees exactly what a visitor (or an attacker) sees.