Updated · 2 min read
the short answer
Is an app built with Base44 secure?
The platform is managed, so servers and patching are not your job, but your app's access rules are. Before launch, check that every entity holding user data is limited to its owner or to admins, that the app is set to private if it should be, that backend functions check who is calling, and that no API key sits in front-end code.
What Base44 takes care of, and what it does not
Base44 runs the hosting, the built-in login and the data store, so there are no servers or databases to patch. What it cannot know is your intent: which records a user may see, which actions only an admin may take, and what a backend function should accept. The AI writes those rules from your prompts, and it errs on the side of making features work.
In July 2025 the security firm Wiz reported a flaw in Base44 that let outsiders register for apps that were meant to be private; Base44 fixed it within a day. The lesson for app owners is to set access deliberately and re-check it, not to assume the defaults match what you meant.
Checklist
- Entities with user data (profiles, orders, messages, files): readable and editable only by the owner or by admins, not by every signed-in user
- Admin pages and admin actions: checked on the server (role check), not only hidden in the menu
- App visibility: private or invite-only if it is an internal tool, and test it from a logged-out browser
- Backend functions: check the signed-in user before doing anything, and validate every input
- Integrations and API keys (OpenAI, Stripe, email): stored as secrets for backend functions, never pasted into page code
- Payments: marked paid only by a verified Stripe webhook, never by the browser
- Uploads: private by default, shared through expiring links
Test it like an outsider
Create two normal accounts. As user B, try to open user A's records by changing IDs in the address bar, and try the admin pages. Then log out and try the same. Anything that works is a leak. Also open your browser's developer tools on the live app and search the loaded JavaScript for "sk_", "key" and "secret".
Questions
Does Base44 have row level security?
Base44 lets you set who can read and change each entity. Make sure every entity with personal data is limited to its owner or admins, and test it with two accounts.
Can I export my Base44 code to check it?
If your plan lets you export or sync the code to GitHub, you can run a code scan on it. Otherwise, the two-account test above and a check of the live site by URL cover the most common problems.