CVE-2026-93922

High

Description

SiYuan through 3.8.4 renders notebook names as raw HTML in the Daily Note picker dialog without escaping, allowing stored cross-site scripting in the Electron renderer. Attackers can create notebooks with HTML payloads in names that execute JavaScript with Node.js access when the picker opens, enabling operating system command execution.

SeverityHigh

CVSS8.8

Exploit probability—

ProductSiyuan

PublishedSep 19, 2026

First seenSep 19, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Vendor advisories

github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm

Affected products

Product	Affected versions	Fixed in
siyuan-note siyuan	v ≤ 3.8.4	—

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