CVE-2024-56734
Better Auth has an Open Redirect Vulnerability in Verify Email Endpoint
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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.
Reserved 2024-12-27 | Published 2024-12-30 | Updated 2024-12-30 | Assigner GitHub_MCWE-601: URL Redirection to Untrusted Site ('Open Redirect')
github.com/...r-auth/security/advisories/GHSA-8jhw-6pjj-8723
github.com/...ommit/deb3d73aea90d0468d92723f4511542b593e522f
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