Thread by @infinitelogins on Thread Reader App – Thread Reader App

A developer rapidly built a security research directory app in three days using Supabase and encountered two critical vulnerabilities: first, exposing user emails in API responses, and second, a PostgreSQL view that bypassed Row-Level Security (RLS) policies because views execute with the owner's privileges by default, allowing unauthorized insert/update/delete operations despite RLS being enabled. The developer learned that security requires careful attention to database layer configurations, particularly understanding how views interact with RLS and ensuring proper privilege isolation.

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