CVE-2024-56734— Better Auth has an Open Redirect Vulnerability in Verify Email Endpoint

Better Auth has an Open Redirect Vulnerability in Verify Email Endpoint

Better Auth is an authentication library for TypeScript. An open redirect vulnerability has been identified in the verify email endpoint of all versions of Better Auth prior to v1.1.6, potentially allowing attackers to redirect users to malicious websites. This issue affects users relying on email verification links generated by the library. The verify email callback endpoint accepts a `callbackURL` parameter. Unlike other verification methods, email verification only uses JWT to verify and redirect without proper validation of the target domain. The origin checker is bypassed in this scenario because it only checks for `POST` requests. An attacker can manipulate this parameter to redirect users to arbitrary URLs controlled by the attacker. Version 1.1.6 contains a patch for the issue.

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指向未可信站点的URL重定向(开放重定向)

Better Auth 输入验证错误漏洞

Better Auth是一个框架无关的认证（和授权）框架，专为TypeScript设计。 Better Auth v1.1.6之前版本存在输入验证错误漏洞，该漏洞源于存在开放重定向漏洞，可能允许攻击者将用户重定向到恶意网站。

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