CVE-2026-44586CWE-79CWE-94

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

High · published May 14, 2026

CVSS v3.1
8.3
EPSS
0%
Percentile
36.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00429 · 36.1th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-05-14T18:11Z
EPSS history
Timeline
  • 14 MAY 18:11Z
    SiYuan: Bazaar marketplace renders unescaped package author metadata, allowing XSS and Electron code execution
    cvelistv5