August 2024
Intermediate to advanced
534 pages
13h 12m
English
Content preview from Building Production-Grade Web Applications with Supabase
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12
Avoiding Unwanted Data Manipulation and Undisclosed Exposures
Supabase is secure by default, but as with any other technology, the problem is when people cobble together a few copy-pasted parts from Google, StackOverflow, or ChatGPT without deeper knowledge of what it will imply. During the writing of this book, I found a massive security leak in a Supabase-powered application, leaking all the personal clients’ data. The problem wasn’t Supabase at all; it was sloppiness within certain areas of their application’s SQL expressions. This is what you want to avoid.
You already know how to protect your table data with RLS, that you can use additional internal schemas, and that an SQL function can adhere to RLS or run with admin rights. This chapter ...
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