CVE-2021-43786 API token verification can be bypassed
Attackers can bypass API token verification to gain unauthorized master token access in NodeBB forum software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-43786?
CVE-2021-43786 is a critical authentication bypass vulnerability in NodeBB, published on 29 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2021-43786?
2 open source packages ship an affected version, including nodebb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
nodebb npm | From 1.15.0 | 1.18.5 |
nodebb npm | From 1.15.0 | 1.18.5 |
Products include Nodebb Nodebb.
How do I fix CVE-2021-43786?
Upgrade nodebb to 1.18.5 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-43786 being exploited?
There is no known exploitation of CVE-2021-43786 in the wild and no public exploit code.
Other vulnerabilities in NodeBB
- CVE-2023-26045 NodeBB vulnerable to path traversal and code execution via prototype vulnerability
- CVE-2020-15149 Account takeover in NodeBB
- CVE-2023-43187 Code injection in n/a
- CVE-2022-46164 Account takeover via prototype vulnerability
- CVE-2022-36045 Account takeover via cryptographically weak PRNG in NodeBB Forum
Sources
Also known as GHSA-hf2m-j98r-4fqw.