CVE-2026-73042
CRITICAL
NVD
CVSS Score
9
Severity
CRITICAL
Published
Aug 15, 2026
Vendor
unknown
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.