CVE-2021-43786
CVSS v3
7.5
HIGH
EPSS Score
2.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2021-11-29
Frequently asked questions
What is CVE-2021-43786?
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.
Is CVE-2021-43786 actively exploited?
Active exploitation of CVE-2021-43786 has not been confirmed. Its EPSS score was 2.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-43786?
CVE-2021-43786 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-43786 affecting your environment?
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