Privileged Supabase credentials in the browser
A service-role or secret key shipped to the frontend can bypass the protections intended for public clients.
Security for Lovable apps
Security checks for apps built with Lovable
Start with the deployed URL. BoringSec inspects the public application, its shipped frontend code and detected backend signals, then separates verified findings from checks that need repository access or authorization.
Useful before launch, after a major Lovable prompt or deployment, and whenever Supabase policies or environment variables change.
Run scans only on systems you own or are authorized to assess. Deep engines require verified authorization and may remain unavailable for a target.
report / sample findingIllustrative
Critical
Example report structure
Supabase service-role credential shipped to the browser
- Evidence
- A service-role-shaped credential is bound to a Supabase client in a fetched same-origin JavaScript asset. The value is masked in the report.
- What it means
- Unlike an anon or publishable key, a service-role credential is server-only and can bypass Row Level Security.
- Fix and verify
- Remove it from the client build, rotate it in Supabase, move privileged operations server-side, redeploy and run a verification scan.
This is an illustrative finding, not a result for your application. Live reports show the scanner, evidence state and coverage limits for the actual target.
Common risk paths
What deserves a closer look
These are risk patterns relevant to Lovable projects—not claims that every project has them. A finding appears only when a scanner returns supporting evidence.
RLS that does not protect the data path
A public anon key is expected; the security boundary is whether policies restrict unauthenticated access to tables and storage.
Generated auth without object ownership checks
A user can be signed in and still reach another user’s rows when server-side authorization is missing or too broad.
Honest coverage
What each scan surface can prove
URL evidence, connected source and authorized deep engines answer different questions. BoringSec keeps those sources separate and shows partial, blocked and unavailable states instead of turning an untested surface into a pass.
Read the public methodologyDeployed web surface
Checks the public response path for TLS, security headers, DNS and email authentication, cookies, CORS, exposed files, technology signals and other externally observable controls.
Shipped JavaScript
Inspects bounded, same-origin frontend bundles for secret-shaped values and records partial coverage when an asset cannot be fetched or exceeds a safety limit.
Independent deep engines
Nuclei, OWASP ZAP and Medusa continue asynchronously only when the requested scan is authorized and the engine is available. Their running, blocked or unavailable state stays visible.
Repository context
A separately connected repository can add source-level evidence for committed secrets, auth and database risk patterns, dependency advisories and server/client boundary mistakes.
From observation to verification
A report built for the next action
- 01
Observe
Inspect the public response path and start eligible background engines.
- 02
Verify evidence
See what was observed, by which scanner and with what confidence.
- 03
Fix in context
Use a concrete remediation path and the Lovable-relevant context.
- 04
Retest
Run a fresh assessment; monitoring can detect later regressions separately.
Questions before you scan
Does BoringSec need access to my Lovable account?
No. A live scan starts from the deployed URL and observes only the public surface. Repository access is a separate, explicit connection and is not required for the URL scan.
What can a URL-only scan prove?
It can support findings with externally observable evidence such as response headers, TLS behavior, public files, shipped bundles and bounded backend probes. It cannot prove that private source code or authenticated workflows are safe.
Does a good score mean the application is completely secure?
No automated scan can prove complete security. BoringSec reports assessed, partial, unavailable and authorization-required coverage explicitly so a clean result is not presented as evidence for surfaces that were never tested.
Is BoringSec affiliated with Lovable?
No. BoringSec is an independent security service and is not sponsored by, endorsed by or affiliated with Lovable.
Check the deployed application, then verify every fix
Start with the public URL. Add source or authenticated context only when you choose to expand coverage.
Start a security scan