Better Auth is an authentication and authorization library for TypeScript. An open redirect has been found in the originCheck middleware function, which affects the following routes: /verify-email, /reset-password/:token, /delete-user/callback, /magic-link/verify, /oauth-proxy-callback. This vulnerability is fixed in 1.2.10.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00135.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Better-auth
  • Better Auth

No data.

No data.

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Vendors Products
Better-auth
  • Better Auth
Advisories
Source ID Title
EUVD EUVD EUVD-2025-20283 Better Auth Open Redirect Vulnerability in originCheck Middleware Affects Multiple Routes
Github GHSA Github GHSA GHSA-36rg-gfq2-3h56 Better Auth Open Redirect Vulnerability in originCheck Middleware Affects Multiple Routes
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/better-auth/better-auth/security/advisories/GHSA-36rg-gfq2-3h56 cve-icon cve-icon
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00063}

 epss

{'score': 0.00075}

Mon, 07 Jul 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 07 Jul 2025 17:30:00 +0000

Type Values Removed Values Added
Description Better Auth is an authentication and authorization library for TypeScript. An open redirect has been found in the originCheck middleware function, which affects the following routes: /verify-email, /reset-password/:token, /delete-user/callback, /magic-link/verify, /oauth-proxy-callback. This vulnerability is fixed in 1.2.10.
Title Better Auth has an Open Redirect Vulnerability in originCheck Middleware Affecting Multiple Routes
Weaknesses CWE-601
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-07-07T17:48:36.223Z

Reserved: 2025-07-02T15:15:11.515Z

Link: CVE-2025-53535

cve-icon Vulnrichment

Updated: 2025-07-07T17:48:24.671Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-07T18:15:28.810

Modified: 2025-07-08T16:18:34.923

Link: CVE-2025-53535

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-13T21:47:29Z