CVE-2026-59833 | SiYuan is an open-source personal knowledge management syste… | CVSS 8.6 HIGH

Description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.

Metadata

CVE ID: CVE-2026-59833
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-07-07 15:00 UTC
Published: 2026-07-09 22:17 UTC
Last updated: 2026-07-09 22:17 UTC
Primary CWE: CWE-79
CWE-79: Improper Neutralization of Input During Web Page Gen…
Vendor / Product: siyuan-note / siyuan
Sources: cve.org · NVD

Severity & Metrics

8.6 HIGH CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
siyuan-note	siyuan	—	< 3.7.1

Weakness (CWE)

CWE	Source	Description
CWE-116	cna	CWE-116: Improper Encoding or Escaping of Output
CWE-79	cna	CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94	cna	CWE-94: Improper Control of Generation of Code ('Code Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.6	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (3)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-97xv-3v84-h358 https://github.com/siyuan-note/siyuan/security/advisories/GHSA-97xv-3v84-h358
https://github.com/siyuan-note/siyuan/commit/ebe252e61fb93f258d083b9da0fa403679fdf94a https://github.com/siyuan-note/siyuan/commit/ebe252e61fb93f258d083b9da0fa403679fdf94a
https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1 https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1