THREATPORT/VULNERABILITY/CVE-2020-5284
MEDIUM SEVERITY

CVE-2020-5284

Next.Js vulnerability

CVSS
4.4
EPSS
43.4%
EPSS pct
99th
Exploited
No known
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 vendor
Zeit
Affected product
Next.Js
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness type (CWE)
Published
2020-03-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 43.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2020-5284

  • Confirm whether Zeit Next.Js is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-5284.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-5284

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-5284 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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