MEDIUM 6.9 NVD
CVE-2026-72812
SiYuan versions before v3.7.4 contain a missing authorization vulnerability in the /api/ref/refreshBacklink endpoint that allows anonymous readers to trigger pe
SiYuan versions before v3.7.4 contain a missing authorization vulnerability in the /api/ref/refreshBacklink endpoint that allows anonymous readers to trigger persistent server-side writes. Attackers can invoke the endpoint with an attacker-controlled block ID to flush transaction queues, scan all references globally, and enqueue database writes, bypassing read-only protections and enabling resource amplification attacks.
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-wgwx-479j-23vq
- https://www.vulncheck.com/advisories/siyuan-before-missing-authorization-via-refreshbackli
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-08-14 via NVD.
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