Stack Auth - the open-source Auth0 & Clerk alternative
Briefly

Instead of handing over a username and password, OAuth 2.0 introduces the concept of access tokens which allow apps limited access to users’ data without compromising their credentials.
In the flawed implementation outlined, various vulnerabilities such as credential exposure and CSRF demonstrate the pitfalls of misunderstandings in the OAuth process, highlighting the necessity of secure design.
Read at Stack Auth
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