CVE-2026-100645

High

Description

SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes. In the Electron desktop app with nodeIntegration enabled, attackers can inject JavaScript that calls Node.js child_process APIs to execute arbitrary commands with user privileges.

SeverityHigh

CVSS8.0

Exploit probability—

ProductSiyuan

PublishedSep 26, 2026

First seenSep 26, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

siyuan-note siyuan3.8.4 or later

Vendor advisories

github.com/siyuan-note/siyuan/security/advisories/GHSA-556j-q8c8-qqg3

Affected products

Product	Affected versions	Fixed in
siyuan-note siyuan	3.7.0 ≤ v < 3.8.4	3.8.4

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