CVE-2023-26045 NodeBB vulnerable to path traversal and code execution via prototype vulnerability
Attackers can execute arbitrary JavaScript files on the server via a path traversal flaw in the user export feature of NodeBB.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-26045?
CVE-2023-26045 is a critical path traversal vulnerability in NodeBB, published on 24 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NodeBB is Node.js based forum software. Starting in version 2.5.0 and prior to version 2.8.7, due to the use of the object destructuring assignment syntax in the user export code path, combined with a path traversal vulnerability, a specially crafted payload could invoke the user export logic to arbitrarily execute javascript files on the local disk. This issue is patched in version 2.8.7. As a workaround, site maintainers can cherry pick the fix into their codebase to patch the exploit.
Weakness: CWE-22
Which versions are affected by CVE-2023-26045?
2 open source packages ship an affected version, including nodebb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
nodebb npm | From 2.5.0 | 2.8.7 |
nodebb npm | From 2.5.0 | 2.8.7 |
Products include Nodebb Nodebb.
How do I fix CVE-2023-26045?
Upgrade nodebb to 2.8.7 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-26045 being exploited?
There is no known exploitation of CVE-2023-26045 in the wild and no public exploit code.
Other vulnerabilities in NodeBB
Sources
Also known as GHSA-vh2g-6c4x-5hmp.