VYPR
Unrated severityNVD Advisory· Published Jun 21, 2026

SiYuan - Remote Code Execution via Malicious Bazaar Package Metadata and README

CVE-2026-56397

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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Affected products

1

Patches

Vulnerability mechanics

References

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