Next Js
CVE-2020-5284
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Relative path traversal prevention
|
| Impact | CVSS score of 4.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAI
Next.js versions before 9.3.2 have a directory traversal vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in npm
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified under CWE-23. Next.js versions before 9.3.2 have a directory traversal vulnerability. Attackers could craft special requests to access files in the dist directory (.next). This does not affect files outside of the dist directory (.next). In general, the dist directory only holds build assets unless your application intentionally stores other assets under this directory. This issue is fixed in version 9.3.2. Affected products include: Zeit Next.Js. Version information: before 9.3.2.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Next.js versions before 9.3.2 have a directory traversal vulnerability. Attackers could craft special requests to access files in the dist directory (.next). This does not affect files outside of the dist directory (.next). In general, the dist directory only holds build assets unless your application intentionally stores other assets under this directory. This issue is fixed in version 9.3.2.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
Affected Products (CPE)NVD
React Server Components in React 19.x contain a critical pre-authentication remote code execution vulnerability (CVE-202
ZEIT Next.js before 2.4.1 has directory traversal under the /_next and /static request namespace, allowing attackers to
Pre-authentication denial of service in React Server Components (versions 19.0.0 through 19.2.1) allows unauthenticated
Information disclosure in React Server Components 19.x, distributed as react-server-dom-webpack, react-server-dom-turbop
Path traversal in Next.js (13.4.0 through 15.5.23 and 16.x before 16.3.3) running on Windows-hosted servers lets a remot
Server-side request forgery in Vercel Next.js affects self-hosted deployments whose custom middleware calls next()/NextR
Next.js is a React framework that can provide building blocks to create web applications. Rated high severity (CVSS 7.5)
Next.js before 13.4.20-canary.13 lacks a cache-control header and thus empty prefetch responses may sometimes be cached
ZEIT Next.js 4 before 4.2.3 has Directory Traversal under the /_next request namespace. Rated high severity (CVSS 7.5),
Unsafe deserialization in React Server Components Server Function endpoints allows remote unauthenticated attackers to t
Server-side request forgery in the Next.js Image Optimization endpoint lets a remote, unauthenticated attacker cause the
Crafted HTTP requests sent to Next.js App Router applications that define at least one Server Action can drive excessive
Exploit-DB