Path Traversal in Nodebb
CVE-2021-43788
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.258 (97.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Nodebb — versions >= 1.0.4, < 1.18.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-43788?
- CVE-2021-43788 is a medium-severity vulnerability in Nodebb, classified under Path Traversal. CVSS score: 5.0/10. Published 2021-11-29.
- How severe is CVE-2021-43788?
- Medium severity. CVSS v3 base score is 5.0 out of 10.
- Is CVE-2021-43788 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.