CVE-2025-67716: medium-severity vulnerability in auth0 nextjs-auth0
Auth0 Next.js SDK has Improper Validation of Query Parameters
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.7epss 0.3%
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:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Affected products
auth0 · nextjs-auth0Related CVEs — auth0 nextjs-auth0
In the same product, most dangerous first.
CVE-2021-32702HIGHReflected XSS from the callback handler's error query parameterEPSS 1.4%CVE-2021-43812MEDIUMOpen redirect in nextjs-auth0EPSS 0.7%CVE-2025-46344MEDIUMAuth0 NextJS SDK v4 Missing Session InvalidationEPSS 0.4%CVE-2025-48947HIGHNextJS-Auth0 SDK Vulnerable to CDN Caching of Session CookiesEPSS 0.4%CVE-2025-67490MEDIUMAuth0 Next.js SDK has Improper Request Caching LookupEPSS 0.2%CVE-2026-40155MEDIUMAuth0 Next.js SDK has Improper Proxy Cache LookupEPSS 0.2%