Security Advisory

CVE-2026-56397

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-21 13:27:04

Last updated 2026-06-24 15:35:50

Assigner VulnCheck

CVSS score 9.4

State PUBLISHED

Description

SiYuan before v3.6.1 fails to sanitize package metadata and README content in the Bazaar marketplace, allowing malicious package authors to inject arbitrary HTML and JavaScript. Attackers can achieve remote code execution on any user browsing the Bazaar by embedding XSS payloads in package displayName, description, or README fields, exploiting Electron's nodeIntegration setting to execute OS commands.

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