CVE-2026-105205
SiYuan before 3.8.5 Information Disclosure via /api/block/getDocInfo and getDocsInfo
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish-mode readers to learn backlink block IDs and reference counts from password-protected and publish-disabled documents by querying a published document. Attackers can send POST requests to /api/block/getDocInfo or getDocsInfo for a published document ID to obtain refIDs and refCount of hidden referencing blocks, bypassing the publish confidentiality boundary.
| CWE | CWE-200 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Oct 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
siyuan-note / siyuan
0 < 3.8.5
References
Credits
🔍 manus-use