Is CVE-2026-72800 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-72800?

CVE-2026-72800 has a CVSS v3 severity of MEDIUM (5.8).

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CVE-2026-72800

Description

SiYuan versions before v3.7.4 fail to apply publish-access filtering to the getAttributeViewKeysByID endpoint, allowing authenticated readers to retrieve complete database column schemas including descriptions, select vocabularies, and template expressions. Additionally, getBlockDefIDsByRefText and getBlockRelevantIDs endpoints enumerate workspace-wide block IDs without publish scoping, enabling attackers to discover valid block identifiers across publish boundaries and access content from hidden or password-protected documents.