CVE-2026-72803

SiYuan versions before v3.7.4 fail to enforce publish-access checks in the getBlockAttrs and batchGetBlockAttrs endpoints. Attackers can retrieve block attributes including names, aliases, memos, and custom fields from protected documents by sending POST requests with block IDs.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-qvq9-hq6p-v378
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getblockattrs
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-qvq9-hq6p-v378

Configurations

No configuration.

History

23 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Versiones de SiYuan anteriores a la v3.7.4 no aplican los controles de acceso de publicación en los endpoints getBlockAttrs y batchGetBlockAttrs. Los atacantes pueden recuperar atributos de bloque, incluyendo nombres, alias, notas y campos personalizados, de documentos protegidos enviyo solicitudes POST con IDs de bloque.

Information

Published : 2026-08-12 20:17

Updated : 2026-10-24 15:10

NVD link : CVE-2026-72803

Mitre link : CVE-2026-72803

CVE.ORG link : CVE-2026-72803

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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