CVE-2025-67716

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CVSS 3.1

5.7 medium

EPSS

<1%p18

Published

Dec 11, 2025 (Dec 11, 2025)

Modified

Jun 17, 2026

Description

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions 4.9.0 through 4.12.1 contain an input-validation flaw in the returnTo parameter, which could allow attackers to inject unintended OAuth query parameters into the Auth0 authorization request. Successful exploitation may result in tokens being issued with unintended parameters. This issue is fixed in version 4.13.0.

Vendors: auth0
Products: nextjs-auth0
Weakness: CWE-184
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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