CVE-2025-67716

Summary

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.

Affected Software

VendorProductVersion RangeStatus
auth0nextjs-auth0>= 4.9.0, < 4.13.0affected

Weaknesses

  • CWE-184: CWE-184: Incomplete List of Disallowed Inputs

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References