CVE-2020-15242

Open Redirect in Next.js

MEDIUM
6.1
CVSS Score
Published: October 8, 2020 at 07:50 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
1 product affected across 1 vendorNext.js

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 9.5.49.5.0 ≤ v < 9.5.4
Affected range stops below 9.5.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCRelease NotesThird Party Advisory
https://github.com/zeit/next.js/releases/tag/v9.5.4

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-601

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