CVE-2026-73048

MEDIUM 5.8

SiYuan before v3.7.4 Information Disclosure via getRefIDsByFileAnnotationID

CVSS Score

5.8

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getRefIDsByFileAnnotationID endpoint that returns block identifiers citing PDF annotations without publish-access filtering. Attackers can extract block identifiers from restricted documents by supplying annotation identifiers visible in published pages, revealing citation relationships across forbidden and password-protected tiers.

CWE	CWE-862
Vendor	siyuan-note
Product	siyuan
Published	Aug 14, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

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-f3q6-vc7q-m6h7 vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getrefidsbyfileannotationid

Credits

🔍 Shirshakhtml