VULNERABILITY INTELLIGENCE
CVE-2026-68587
CVSS score9.2 CRITICAL
EPSS probability0.32%
CISA KEVNot currently listed
Published2026-08-03
Last modified2026-10-23
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Description
SiYuan versions before v3.7.3 contain an information disclosure vulnerability in the getHeadingDeleteTransaction, getHeadingLevelTransaction, and getHeadingInsertTransaction endpoints that return rendered block DOM without publish-access checks. Anonymous readers or publish RoleReader tokens can supply a heading block ID to read full rendered content of publish-disabled documents that should be restricted.
Weakness classification
- CWE-862: Missing Authorization