Is CVE-2026-73042 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73042?

CVE-2026-73042 has a CVSS v3 severity of CRITICAL (9).

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CVE-2026-73042

Description

SiYuan before v3.7.4 fails to properly escape database menu metadata in HTML interpolation, allowing stored values to execute script when users open group, view, or field-edit menus. Attackers can inject markup through field descriptions or names that close containing elements and execute arbitrary code via event handlers, reaching Node built-ins due to Electron's insecure configuration.