VULNERABILITY INTELLIGENCE
CVE-2026-73042
CVSS score9 CRITICAL
EPSS probability0.52%
CISA KEVNot currently listed
Published2026-08-15
Last modified2026-08-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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.
Weakness classification
- disclosure@vulncheck.com: CWE-79