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CVE-2020-5284

45
FAUCET Score

CVE-2020-5284 is a directory traversal vulnerability affecting Next.js versions prior to 9.3.2, allowing attackers to access files within the .next build directory through specially crafted requests. This medium-severity vulnerability has a CVSS score of 4.3, indicating low impact on confidentiality and no impact on integrity or availability, with a network attack vector and low attack complexity. While not listed in CISA's KEV catalog, exploit intelligence shows a Nuclei template exists, and despite a high EPSS score, there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.3.2CPE matchmatch criteria
cpe:2.3:a:zeit:next.js:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
43.43%
Probability of exploitation in next 30 days
EPSS Percentile
98.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Nuclei: CVE-2020-5284 · Apr 5, 2020
This CVE's current EPSS score of 0.4343 is in the 100th percentile among its peer group of 21,924 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: nextFixed in: 9.3.2

Vendor Advisories (1)

npmGHSA-fq77-7p7r-83rjmedium

Directory Traversal in Next.js

Mar 30, 2020

References

github.com / zeit/next.js/releases/tag/v9.3.2
Release Notes
github.com / zeit/next.js/security/advisories/GHSA-fq77-7p7r-83rj
Third Party Advisory