CVE-2026-73608

HIGH 8.6

SiYuan before v3.7.4 Authorization Bypass via getAttributeViewSearchTarget

CVSS Score

8.6

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan's development branch (endpoint introduced by commit 9b8e8956f, not present in v3.7.3 or master, patched in v3.7.4) contains a missing-authorization vulnerability in the /api/av/getAttributeViewSearchTarget endpoint. The route is registered with CheckAuth only and performs no authorization checks (no CheckReadonly, no publish-access or encrypted-notebook gating). Given a database identifier taken from a published page and a keyword, an anonymous reader can query the endpoint to retrieve matching database row content, including rows that publish filters (FilterAttributeViewByPublishAccess) would otherwise withhold. No released stable version is affected.

CWE	CWE-862
Vendor	siyuan-note
Product	siyuan
Published	Aug 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqf-hhrq-7v45 vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-authorization-bypass-via-getattributeviewsearchtarget

Credits

🔍 Shirshakhtml