EUVD-2026-19973

SiYuan: Remote Code Execution in the Electron desktop client via stored XSS in synced table captions...

CVE-2026-39846 SiYuan affected by Remote Code Execution in the Electron desktop client via stored XSS in synced table captions

SiYuan is a personal knowledge management system. Prior to 3.6.4, a malicious note synced to another user can trigger remote code execution in the SiYuan Electron desktop client. The root cause is that table caption content is stored without safe escaping and later unescaped into rendered HTML,...

Arbitrary Code Injection

Overview Affected versions of this package are vulnerable to Arbitrary Code Injection in the process that renders the Gallery or Kanban view when a malicious URL is stored in the mAsset field and used as a cover image. An attacker can execute arbitrary operating system commands under the victim's...

GHSA-RX4H-526Q-4458 SiYuan: Stored XSS in Attribute View Gallery/Kanban Cover Rendering Allows Arbitrary Command Execution in Desktop Client

Summary An attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with “Cover From - Asset Field” enabled. The vulnerable code accepts arbitrary https URLs without extensions as images, stores the...

SiYuan: Stored XSS in Attribute View Gallery/Kanban Cover Rendering Allows Arbitrary Command Execution in Desktop Client

Summary An attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with “Cover From - Asset Field” enabled. The vulnerable code accepts arbitrary https URLs without extensions as images, stores the...