CVE-2026-44586

SiYuan: Bazaar marketplace renders unescaped package author metadata, allowing XSS and Electron code execution

State: Published
Severity: 8.3 High
Published: May 14, 2026
Updated: May 14, 2026
Reserved: May 6, 2026

Description

SiYuan is an open-source personal knowledge management system. From 2.1.12 to before 3.7.0. SiYuan's Bazaar marketplace renders package author metadata from the public bazaar stage feed into HTML without escaping. In the desktop app this becomes stored XSS, and because SiYuan's Electron windows are created with nodeIntegration: true and contextIsolation: false, a successful payload can call Node.js APIs and execute code on the host. This vulnerability is fixed in 3.7.0.

Scores

CVSS	Score	Vector	Source
3.1	8.3 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
siyuansiyuan-note	>= 2.1.12, < 3.7.0Affected

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x6wf-w2rg-2gw9

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