CVE-2026-72803

Description

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 Vector

References

• 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