Unintentional leakage of private information via cross-origin websocket session hijacking

MEDIUM 4.7CVE-2023-2850 · GHSA-4qcv-qf38-5j3j · Published 25/07/2023 · updated 17/06/2026

Package	Affected versions	Patched versions
nodebb nodebb	`≥ 3.0.0, < 3.1.3< 2.8.13`	`3.1.32.8.13`
nodebb npm	`≥ 3.0.0, < 3.1.3< 2.8.13`	`3.1.32.8.13`

Description

Impact

Private messages or posts might be leaked to third parties if victim opens the attackers site while browsing nodebb.

Patches

Patched in v3.1.3
Backported to v2.x line via v2.8.13

Workarounds

Users can cherry-pick https://github.com/NodeBB/NodeBB/commit/51096ad2345fb1d1380bec0a447113489ef6c359 if they are on v3.x

If you are running v2.x of NodeBB, you can cherry-pick a5d92da9ddac5607ab7f737520a66eaed6d3ddee followed by 62e162cf1e735e42462be1db9b4954b5a69accdf

NVD 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.

References

NodeBB/NodeBB security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2023-2850 · ADVISORY
NodeBB/NodeBB commit 51096ad · WEB
NodeBB/NodeBB commit 62e162c · WEB
NodeBB/NodeBB commit a5d92da · WEB
NodeBB/NodeBB · PACKAGE
NodeBB/NodeBB release v3.1.3 · WEB

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