CVE-2021-43788

Public Exploit
Path traversal in translator module of NobeBB

Description

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.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.28% Top 15%
Third-Party Advisory sonarsource.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: NodeBB NodeBB
Published at:
Updated at:

References

Link Tags
https://github.com/NodeBB/NodeBB/releases/tag/v1.18.5 third party advisory release notes
https://github.com/NodeBB/NodeBB/security/advisories/GHSA-pfj7-2qfw-vwgm third party advisory
https://github.com/NodeBB/NodeBB/commit/c8b2fc46dc698db687379106b3f01c71b80f495f third party advisory patch
https://blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-43788?
CVE-2021-43788 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43788?
To fix CVE-2021-43788, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43788 being actively exploited in the wild?
It is possible that CVE-2021-43788 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43788?
CVE-2021-43788 affects NodeBB NodeBB.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.