Vulnerability Description
Next.js versions >=9.5.0 and <9.5.4 are vulnerable to an Open Redirect. Specially encoded paths could be used with the trailing slash redirect to allow an open redirect to occur to an external site. In general, this redirect does not directly harm users although can allow for phishing attacks by redirecting to an attackers domain from a trusted domain. The issue is fixed in version 9.5.4.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vercel | Next.Js | >= 9.5.0, < 9.5.4 |
Related Weaknesses (CWE)
References
- https://github.com/vercel/next.js/security/advisories/GHSA-x56p-c8cg-q435PatchThird Party Advisory
- https://github.com/zeit/next.js/releases/tag/v9.5.4Release NotesThird Party Advisory
- https://github.com/vercel/next.js/security/advisories/GHSA-x56p-c8cg-q435PatchThird Party Advisory
- https://github.com/zeit/next.js/releases/tag/v9.5.4Release NotesThird Party Advisory
FAQ
What is CVE-2020-15242?
CVE-2020-15242 is a vulnerability with a CVSS score of 4.7 (MEDIUM). Next.js versions >=9.5.0 and <9.5.4 are vulnerable to an Open Redirect. Specially encoded paths could be used with the trailing slash redirect to allow an open redirect to occur to an external site. I...
How severe is CVE-2020-15242?
CVE-2020-15242 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15242?
Check the references section above for vendor advisories and patch information. Affected products include: Vercel Next.Js.