{"id":"CVE-2023-2850","aliases":["GHSA-4qcv-qf38-5j3j"],"url":"https://o3.security/vulnerability/CVE-2023-2850","summary":"Unintentional leakage of private information via cross-origin websocket session hijacking","details":"### Impact\n\nPrivate messages or posts might be leaked to third parties if victim opens the attackers site while browsing nodebb.\n\n### Patches\n\n* Patched in v3.1.3\n* Backported to v2.x line via v2.8.13\n\n### Workarounds\n\nUsers can cherry-pick https://github.com/NodeBB/NodeBB/commit/51096ad2345fb1d1380bec0a447113489ef6c359 if they are on v3.x\n\nIf you are running v2.x of NodeBB, you can cherry-pick a5d92da9ddac5607ab7f737520a66eaed6d3ddee followed by 62e162cf1e735e42462be1db9b4954b5a69accdf\n","published":"2023-07-25T11:13:18.100Z","modified":"2026-08-12T03:51:29.450336228Z","cvss":{"score":4.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"nodebb","fixedVersion":"3.1.3"},{"ecosystem":"npm","name":"nodebb","fixedVersion":"2.8.13"}],"fix":{"url":"https://github.com/NodeBB/NodeBB/commit/51096ad2345fb1d1380bec0a447113489ef6c359","label":"NodeBB/NodeBB@51096ad"},"references":[{"type":"WEB","url":"https://github.com/NodeBB/NodeBB/releases/tag/v3.1.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2850.json"},{"type":"ADVISORY","url":"https://github.com/NodeBB/NodeBB/security/advisories/GHSA-4qcv-qf38-5j3j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2850"},{"type":"FIX","url":"https://github.com/NodeBB/NodeBB/commit/51096ad2345fb1d1380bec0a447113489ef6c359"},{"type":"WEB","url":"https://github.com/NodeBB/NodeBB/commit/62e162cf1e735e42462be1db9b4954b5a69accdf"},{"type":"WEB","url":"https://github.com/NodeBB/NodeBB/commit/a5d92da9ddac5607ab7f737520a66eaed6d3ddee"},{"type":"PACKAGE","url":"https://github.com/NodeBB/NodeBB"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:29.450336228Z"}}