CVE-2023-2850
Unintentional leakage of private information via cross-origin websocket session hijacking
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2023-2850- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N - Weakness
- CWE-1385
- Updated
- 2026-11-02
EUVDEUVD-2023-1957
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.
- Record
EUVD-2023-1957- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4qcv-qf38-5j3j
Unintentional leakage of private information via cross-origin websocket session hijacking
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
- Record
GHSA-4qcv-qf38-5j3j- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N - Weakness
- CWE-346, CWE-1385
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2023-2850- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N - Weakness
- CWE-1385, CWE-346
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2023-2850- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N - Weakness
- CWE-1385
- Updated
- 2026-11-02
OSVGHSA-4qcv-qf38-5j3j
Unintentional leakage of private information via cross-origin websocket session hijacking
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
- Record
GHSA-4qcv-qf38-5j3j- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N - Weakness
- CWE-1385, CWE-346
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-2850 is a medium vulnerability (CVSS 4.7) in Nodebb, published July 25, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. Fixed in nodebb 3.1.3.
References
github.com/NodeBB/NodeBB/security/advisories/GHSA-4qcv-qf38-5j3j
nvd.nist.gov/vuln/detail/CVE-2023-2850