CVE-2021-43788

Nodebb vulnerability

CVSS

5.0

EPSS

25.8%

EPSS pct

98th

Exploited

No known

Nodebb is an open source Node.js based forum software. Prior to v1.18.5, a path traversal vulnerability was present that allowed users to access JSON files outside of the expected `languages/` directory. The vulnerability has been patched as of v1.18.5. Users are advised to upgrade as soon as possible.

Affected vendor

Nodebb

Affected product

Nodebb

CVSS vector

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

Weakness type (CWE)

CWE-22 — Path Traversal

Published

2021-11-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to low impact to confidentiality.

Its EPSS score of 25.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2021-43788

Confirm whether Nodebb Nodebb is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-43788.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-43788

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