PT-2026-51236

CVE-2026-56395

Published

2026-03-16

Updated

2026-08-19

Description by

CVSS 3.1

9.6

Critical

MetricsAV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.6.1

Description SiYuan fails to sanitize package metadata and README content within the Bazaar marketplace. This allows malicious authors to inject arbitrary HTML and JavaScript into the displayName, description, or README fields. Because the application is built on Electron with the nodeIntegration setting enabled, these Cross-Site Scripting (XSS) payloads can escape the browser context to execute operating system commands, leading to remote code execution on the device of any user browsing the marketplace.

Recommendations Update to version 3.6.1.

Exploitability

Exploit

Fix

Impacts

Researchers

0Xkakash1

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')

Related identifiers