CVE-2026-93922
HIGHCVSS 8.8Description
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.
Timeline
Published:September 19th, 2026 12:16 AM
Last modified:September 22nd, 2026 4:18 PM
CVSS Scoring
CVSS v3: 8.8 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- https://github.com/siyuan-note/siyuan
- https://github.com/siyuan-note/siyuan/blob/v3.8.4/app/src/util/mount.ts#L72
- https://github.com/siyuan-note/siyuan/blob/v3.8.4/kernel/model/file.go#L2446-L2454
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm
- https://www.vulncheck.com/advisories/siyuan-through-3.8.4-stored-xss-via-notebook-names
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm
Source: NIST NVD · Data may lag official sources by up to one minute