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Fencer Intel
medium 5.7

CVE-2025-67716 json

Auth0 Next.js SDK has Improper Validation of Query Parameters

published 10mo ago modified 26d ago also EUVD-2025-202629 , GHSA-mr6f-h57v-rpj5

cvss
5.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

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.

Patch / fix

  • npm @auth0/nextjs-auth0 4.13.0
  • auth0 nextjs-auth0 4.13.0

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
10mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.7 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
GitHub 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm @auth0/nextjs-auth0
>=4.9.0, <4.13.0
4.13.0

Affected products

  • auth0 nextjs-auth0

Classification

Weakness
  • CWE-184 Incomplete List of Disallowed Inputs
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.