Is Base44 safe? A security guide for Base44 apps
Base44 is not a Supabase app. It runs its own backend, and access is governed by permission settings on each data entity rather than by database-level rules. When entities are generated, those permissions frequently grant broad read or write access, and builders often do not tighten them, which can leave an entity readable, or writable, by people who should not have access.
The Base44 architecture, and where it leaks
Every entity has its own read and write permissions. Security is decided entity by entity, in that configuration, not in a single database rule you set once.
If an entity's read or write permission is left broad, its records are reachable without the right authorization, and in some cases without signing in at all. Because it is per-entity, one overlooked entity can expose data even when the rest of the app is locked down.
What to check on a Base44 app
- Each entity's read permission scoped to its owner or role, not left open.
- Each entity's write permission locked down so strangers cannot create or edit records.
- No entity returning sensitive data to an anonymous request.
- No cross-user access by changing an ID in a request.
How to check your Base44 app
ArgosX has specific coverage for Base44's entity model: it checks each entity's permissions the way a real visitor would, confirms cross-user access with a two-account test, and shows you exactly which entity to fix, with proof and an optional human-verified pass.
Common questions
What is the most common security issue in Base44 apps?
An entity whose read or write permission was left broader than intended, so its records can be read (and sometimes written) without the right authorization. Set each entity's access to the specific users or roles that should have it.
Check your own app for this, free.
A free scan runs in minutes, no signup. Where it finds this, it proves it with the request and screenshot, not just a maybe. A human-verified pass is available when you want a person to confirm every finding.