CVE-2025-67716

MEDIUM EPSS 13.2%
Published Dec 11, 20256mo ago · Modified Jun 17, 20262w ago
5.7 CVSS 3.1
Medium
Find Similar
Published Dec 11, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.7
Exploitability
0.5
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required High
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
13.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-184

Affected Products 1

VendorProductVersionRange
auth0nextjs-auth0*≥4.9.0  –  <4.12.1

References 2

  • github.com https://github.com/auth0/nextjs-auth0/commit/35eb321de3345ccf23e8c0d6f66c9f2f2f57d26c
    Patch
  • github.com https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-mr6f-h57v-rpj5
    Vendor Advisory

Remediation

  • github.com https://github.com/auth0/nextjs-auth0/commit/35eb321de3345ccf23e8c0d6f66c9f2f2f57d26c
    Patch