FlutterFlow Security Scanner
Built an app with FlutterFlow? Visual development makes it easy to overlook security. We scan for the vulnerabilities that matter.
Enter your deployed app's URL. Review the findings, take the suggested fixes to your coding tool, and retest after making changes.
First scan free: issue counts and one finding revealed in detail. No card required.
Top 4 Security Issues in FlutterFlow Apps
Open Firebase Rules
FlutterFlow projects default to Firebase, and many ship with permissive Security Rules.
Client-Side API Keys
Third-party API keys are compiled into the app where they can be extracted.
Unauthenticated Firestore Access
Collections for sensitive data may lack authentication requirements.
Unvalidated Custom Functions
Custom Dart functions may process user input without sanitization.
Where Security Breaks in FlutterFlow Apps
Built on Supabase (Postgres + RLS), FlutterFlow applications share a recognizable fingerprint, which means attackers and automated scanners find them the same way every time. Based on real vulnerability patterns in FlutterFlow deployments, the breakdown is 1 critical-impact issue, 2 high-impact, and 1 medium-or-lower.
Open Firebase Rules
FlutterFlow projects default to Firebase, and many ship with permissive Security Rules.
Fix: Enable Row Level Security (Supabase) or Security Rules (Firebase) on every table. For custom backends, enforce authorization at the query layer — never client-side.
Client-Side API Keys
Third-party API keys are compiled into the app where they can be extracted.
Fix: Move all secrets server-side (environment variables, serverless functions). Rotate any keys previously in frontend code. Audit bundles for leftover credentials before each deploy.
Unauthenticated Firestore Access
Collections for sensitive data may lack authentication requirements.
Fix: Enforce email verification, minimum password requirements, and rate limiting on auth endpoints. Test auth flows as unauthenticated and cross-user to verify access controls.
Unvalidated Custom Functions
Custom Dart functions may process user input without sanitization.
Fix: Scan your deployed application with a security tool that understands this stack. Address the specific findings — generic best practices don't catch platform-specific misconfigurations.
What We Check
Firebase Rules Audit
Tests Firestore and Realtime Database Security Rules.
Secret Detection
Scans compiled app bundle for API keys and credentials.
Auth Flow Testing
Verifies authentication enforces email verification and strong passwords.
Security Headers
Checks web deployment for missing HTTP security headers.
What You'll Get
Why FlutterFlow Apps Need Security Scanning
FlutterFlow makes it possible to build polished Flutter apps visually. But those clicks configure real security settings — a Firestore collection without Security Rules is fully exposed.
vas tests your deployed FlutterFlow application the same way an attacker would. We probe Firebase Security Rules, scan for leaked credentials, and verify authentication controls.
How FlutterFlow Security Scanning Works
Submit Your URL
Enter your FlutterFlow application URL. Our scanner automatically detects your tech stack and configures the appropriate security checks for FlutterFlow.
Automated Analysis
We check the reachable app for exposed secrets, browser protections, authentication issues and database access problems. A standard scan typically takes a few minutes; blocked requests or incomplete coverage are reported.
Get Actionable Results
Receive a detailed report with prioritized vulnerabilities, severity ratings, and step-by-step remediation guidance with code examples specific to FlutterFlow.
Common Questions About FlutterFlow Security
What does a VAS scan of a FlutterFlow app check?
VAS checks the deployed pages, scripts and endpoints it can reach for issues including firebase rules audit, secret detection, auth flow testing, security headers. The report records findings and coverage limits; it does not certify the whole app as secure.
What will I receive in the report?
Findings include severity, supporting evidence and remediation guidance. Your first scan is free, with issue counts and one finding revealed in detail. Paid report access unlocks every finding. Use Export for AI to bring available findings into your coding tool, review the proposed changes and retest.
Can a scan verify every permission and private workflow?
No. Coverage depends on reachable pages, discovered endpoints and enabled checks. Configure a test login for supported authenticated checks. Review source code and business-specific permissions separately. Zero findings does not prove an app is secure.
Does VAS change my code or database policies?
VAS provides recommendations, not automatic fixes. Adapt any suggested policy or code change to your data model, test that permitted users still have access and that other users do not, then rescan. Read checks alone cannot confirm insert, update or delete permissions.
What should I know before scanning a production app?
Only scan apps you own or have permission to test. Scan requests can trigger firewall rules, logs and rate limits. Review enabled checks, and use staging or dedicated test accounts for sensitive workflows. Active tests, where enabled, need separate care because they can make changes.
Remediation Playbook for FlutterFlow
Priority-ordered fixes for the specific findings we see in FlutterFlow apps. Critical items close data-exposure gaps; high items prevent compromise; medium items reduce attack surface. Applies to apps using Supabase (Postgres + RLS), the dominant FlutterFlow stack.
1. Open Firebase Rules
Why it matters: FlutterFlow projects default to Firebase, and many ship with permissive Security Rules.
How to close it: Enable Row Level Security (Supabase) or Security Rules (Firebase) on every table. For custom backends, enforce authorization at the query layer — never client-side.
2. Client-Side API Keys
Why it matters: Third-party API keys are compiled into the app where they can be extracted.
How to close it: Move all secrets server-side (environment variables, serverless functions). Rotate any keys previously in frontend code. Audit bundles for leftover credentials before each deploy.
3. Unauthenticated Firestore Access
Why it matters: Collections for sensitive data may lack authentication requirements.
How to close it: Enforce email verification, minimum password requirements, and rate limiting on auth endpoints. Test auth flows as unauthenticated and cross-user to verify access controls.
4. Unvalidated Custom Functions
Why it matters: Custom Dart functions may process user input without sanitization.
How to close it: Scan your deployed application with a security tool that understands this stack. Address the specific findings — generic best practices don't catch platform-specific misconfigurations.
Verify the fixes stuck
Rescan after deploying a fix to check whether the original finding still appears. Compare the evidence and coverage with the previous report. For permissions and private workflows, also repeat the relevant tests with authorized and unauthorized test users.
Check your FlutterFlow app
Find observable security issues in your deployed app, review the evidence and take the next steps with your coding tool.
Start with a free scan. See issue counts and one finding in detail, then decide whether you need full report access.
More on FlutterFlow Security
Every angle of FlutterFlow security, from the specific findings we detect to step-by-step fixes.
FlutterFlow Security Risks
Specific risks we find in FlutterFlow apps, with real-world examples.
FlutterFlow Security Issues
Issues grouped by severity with detection and fix steps.
FlutterFlow Security Checklist
Pre-launch checklist covering every finding class for FlutterFlow.
How to Secure FlutterFlow Apps
Step-by-step hardening guide for FlutterFlow deployments.