by Kastro
Paper/Archive/CVE-2026-73042

CVE-2026-73042

siyuan-note siyuan — SiYuan before v3.7.4 Remote Code Execution via Menu Metadata

EPSS 0.5%CVSS 9.4
critical.is priorityof 100
37
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 44.1.441 × 208.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
siyuan< 3.7.43.7.4CNA

Scores by source

VulnCheck (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
VulnCheck (CNA)9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorygithub.com/siyuan-note/siyuan/security/advisories/GHSA-gcm3-qcq3-72rvwriteupvulncheck.com/advisories/siyuan-before-remote-code-execution-via-menu-metadata