Vulnerability Description
NextAuth.js is a complete open source authentication solution for Next.js applications. An attacker can pass a compromised input to the e-mail [signin endpoint](https://next-auth.js.org/getting-started/rest-api#post-apiauthsigninprovider) that contains some malicious HTML, tricking the e-mail server to send it to the user, so they can perform a phishing attack. Eg.: `[email protected], <a href="http://attacker.com">Before signing in, claim your money!</a>`. This was previously sent to `[email protected]`, and the content of the email containing a link to the attacker's site was rendered in the HTML. This has been remedied in the following releases, by simply not rendering that e-mail in the HTML, since it should be obvious to the receiver what e-mail they used: next-auth v3 users before version 3.29.8 are impacted. (We recommend upgrading to v4, as v3 is considered unmaintained. next-auth v4 users before version 4.9.0 are impacted. If for some reason you cannot upgrade, the workaround requires you to sanitize the `email` parameter that is passed to `sendVerificationRequest` and rendered in the HTML. If you haven't created a custom `sendVerificationRequest`, you only need to upgrade. Otherwise, make sure to either exclude `email` from the HTML body or efficiently sanitize it.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextauth.Js | Next-Auth | < 3.29.8 |
Related Weaknesses (CWE)
References
- https://github.com/nextauthjs/next-auth/commit/ae834f1e08a4a9915665eecb9479c74c6PatchThird Party Advisory
- https://github.com/nextauthjs/next-auth/releases/tag/next-auth%40v4.9.0Release NotesThird Party Advisory
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-pgjx-7f9g-9463ExploitThird Party Advisory
- https://next-auth.js.org/getting-started/upgrade-v4Vendor Advisory
- https://next-auth.js.org/providers/email#customizing-emailsVendor Advisory
- https://github.com/nextauthjs/next-auth/commit/ae834f1e08a4a9915665eecb9479c74c6PatchThird Party Advisory
- https://github.com/nextauthjs/next-auth/releases/tag/next-auth%40v4.9.0Release NotesThird Party Advisory
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-pgjx-7f9g-9463ExploitThird Party Advisory
- https://next-auth.js.org/getting-started/upgrade-v4Vendor Advisory
- https://next-auth.js.org/providers/email#customizing-emailsVendor Advisory
FAQ
What is CVE-2022-31127?
CVE-2022-31127 is a vulnerability with a CVSS score of 7.1 (HIGH). NextAuth.js is a complete open source authentication solution for Next.js applications. An attacker can pass a compromised input to the e-mail [signin endpoint](https://next-auth.js.org/getting-starte...
How severe is CVE-2022-31127?
CVE-2022-31127 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31127?
Check the references section above for vendor advisories and patch information. Affected products include: Nextauth.Js Next-Auth.