CVE-2021-43786

Public Exploit
API token verification can be bypassed

Description

Nodebb is an open source Node.js based forum software. In affected versions incorrect logic present in the token verification step unintentionally allowed master token access to the API. The vulnerability has been patch as of v1.18.5. Users are advised to upgrade as soon as possible.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.43%
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-hf2m-j98r-4fqw third party advisory
https://github.com/NodeBB/NodeBB/commit/04dab1d550cdebf4c1567bca9a51f8b9ca48a500 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-2021-43786?
CVE-2021-43786 has been scored as a critical severity vulnerability.
How to fix CVE-2021-43786?
To fix CVE-2021-43786, 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-2021-43786 being actively exploited in the wild?
It is possible that CVE-2021-43786 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43786?
CVE-2021-43786 affects NodeBB NodeBB.
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