Docs before 5.4.1 fails to properly revoke websocket collaboration connections when access is revoked at parent documents. Attackers with revoked access can retain real-time read and write access to sub-documents through open websocket sessions that are never disconnected.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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