Cloudanix VulnDB

CVE-2026-32751

Critical · 9.0

CVSS

9.0

EPSS

0.9%

Published

Mar 19, 2026

CISA due date

—

The record

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the mobile file tree (MobileFiles.ts) renders notebook names via innerHTML without HTML escaping when processing renamenotebook WebSocket events. The desktop version (Files.ts) properly uses escapeHtml() for the same operation. An authenticated user who can rename notebooks can inject arbitrary HTML/JavaScript that executes on any mobile client viewing the file tree. Since Electron is configured with nodeIntegration: true and contextIsolation: false, the injected JavaScript has full Node.js access, escalating stored XSS to full remote code execution. The mobile layout is also used in the Electron desktop app when the window is narrow, making this exploitable on desktop as well. This issue has been fixed in version 3.6.1.

Affected packages

Ecosystem Package Introduced Fixed
openSUSE:Leap 15.6 govulncheck-vulndb 0 0.0.20260326T203309-150000.1.155.2

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