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.
Cherry-pick commit hash 04dab1d550cdebf4c1567bca9a51f8b9ca48a500 to receive this patch in lieu of a full upgrade.
If you have any questions or comments about this advisory:
blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot
github.com/NodeBB/NodeBB
github.com/NodeBB/NodeBB/commit/04dab1d550cdebf4c1567bca9a51f8b9ca48a500
github.com/NodeBB/NodeBB/releases/tag/v1.18.5
github.com/NodeBB/NodeBB/security/advisories/GHSA-hf2m-j98r-4fqw
nvd.nist.gov/vuln/detail/CVE-2021-43786