CVE-2026-44586: SiYuan: Bazaar marketplace renders unescaped package author metadata, allowing XSS and Electron code execution

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack vector

Network

Complexity

High

Privileges

None

User interaction

Required

Confidentiality

High

Integrity

High

Availability

High

Scope

Changed

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 23% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

SI

siyuan · siyuan-note

>= 2.1.12, < 3.7.0 · source: vendor