PT-2026-88947 · Git+1 · Siyuan
CVE-2026-87809
·
Published
2026-09-09
·
Updated
2026-09-09
CVSS v4.0
7.1
High
| Vector | AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
Siyuan before v3.8.2 fails to apply publish-access filtering to embedded blocks before rendering in the /api/export/preview and /api/lute/copyStdMarkdown endpoints. Attackers with reader access can retrieve the full rendered content of private, hidden, or publish-disabled blocks by accessing public documents containing embed queries that select those blocks.
Exploit
Fix
IDOR
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Weakness Enumeration
Related Identifiers
Affected Products
Siyuan