Base44 security

Database Tables Publicly Accessible Without Authentication

Your Base44 app's database tables are readable by anyone, even unauthenticated visitors. Personal information, email addresses, passwords, payment details, and private business data are all accessible by directly querying the database through the app's API layer.

This happens because Base44's default table configuration may not enforce access restrictions, or the access rules were misconfigured during setup. Anyone who discovers the API endpoint or inspects network requests can pull all records from any table.

You might discover this when a user reports seeing other users' data, when you find your data indexed by search engines, or during a security review that reveals all tables are open.

Error Messages You Might See

All user records visible without login API returns full table data without authentication Sensitive fields exposed in API response Database records indexed by Google
All user records visible without loginAPI returns full table data without authenticationSensitive fields exposed in API responseDatabase records indexed by Google

Common Causes

  • Default table permissions left open — Base44 tables are created without row-level or table-level access restrictions enabled
  • No authentication required for read operations — The data API allows GET requests without any auth token or session
  • API endpoints exposed in frontend code — Network requests visible in browser DevTools reveal direct database query endpoints
  • Access rules only on UI, not data layer — Page-level restrictions hide the UI but the underlying data endpoints remain accessible
  • Admin tables not separated — Sensitive admin data lives in the same unrestricted tables as public content

How to Fix It

  1. Audit all table permissions — Go through every table in your Base44 dashboard and check who has read, write, and delete access
  2. Enable authentication on all data endpoints — Require a valid session or API token for any data read or write operation
  3. Implement row-level access — Configure rules so users can only read and modify their own records
  4. Separate public and private tables — Keep truly public content (blog posts, product listings) in separate tables from private data (users, orders)
  5. Test as an unauthenticated user — Open your app in an incognito window and check what data you can access without logging in

Real developers can help you.

Matthew Jordan Matthew Jordan I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job. Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience Yovel Cohen Yovel Cohen I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well. Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture Tejas Chokhawala Tejas Chokhawala Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript. Focused on performance, clean architecture and shipping fast. Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools. Matt Butler Matt Butler Software Engineer @ AWS Dor Yaloz Dor Yaloz SW engineer with 6+ years of experience, I worked with React/Node/Python did projects with React+Capacitor.js for ios Supabase expert Jacek Rozanski Jacek Rozanski Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004). Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month. What I bring to AI-built apps: - I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0 - I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture) - I set up the infrastructure AI tools don't touch: AWS hosting, CI/CD pipelines, automated deployments, database optimization, monitoring, and alerting - I integrate external services: payment providers, email systems, partner APIs, SSO/auth Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code. Based in Poland (CET timezone). Available for async work and calls during EU/US business hours. PawelPloszaj PawelPloszaj I'm fronted developer with 10+ years of experience with big projects. I have small backend background too Pratik Pratik SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure

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Frequently Asked Questions

How do I check if my Base44 tables are publicly accessible?

Open your app in an incognito browser window without logging in. Try accessing data pages or inspect network requests in DevTools. If you can see table data without authentication, your tables are public.

Can I restrict access to specific fields within a table?

Base44 typically allows table-level and row-level access rules. For field-level restrictions, you may need to create separate tables for sensitive fields and apply stricter access rules to those tables.

Related Base44 Issues

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