CVE-2026-72805

SiYuan versions before v3.7.4 fail to enforce publish-access checks on getBlockBreadcrumb, getRefText, and getBlockTreeInfos endpoints, allowing disclosure of protected document content and metadata. Anonymous readers or publish RoleReader accounts can retrieve document titles, ancestor block content snippets, reference text, and path metadata for publish-forbidden or password-protected documents by supplying 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-67x2-mq63-v9vm
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-block-endpoints
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67x2-mq63-v9vm

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-12 20:17

Updated : 2026-08-26 16:56

NVD link : CVE-2026-72805

Mitre link : CVE-2026-72805

CVE.ORG link : CVE-2026-72805

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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