Advisories

SiYuan before v3.7.4 Publish-Boundary Bypass via WebSocket

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severity
high
date
Affecting
  • siyuan >= 0, < 3.7.4

CWE
  • CWE-862 Missing Authorization
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Credit
Shirshakhtml
Description
SiYuan versions before v3.7.4 contain a publish-boundary bypass vulnerability in WebSocket broadcast sessions that allows anonymous readers to receive unfiltered edits. Attackers can establish a WebSocket connection to the publish surface and passively receive real-time content events including password-protected and forbidden documents without authentication.

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