CVE-2026-56397 SiYuan - Remote Code Execution via Malicious Bazaar Package Metadata and README

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...

CVE-2026-33067

SiYuan (versions ≤ 3.6.0) is affected by an XSS vulnerability in package metadata rendering (displayName, description) that is not HTML-escaped. An attacker could inject arbitrary HTML/JavaScript into these fields via a malicious Bazaar package, and due to the Electron configuration (nodeIntegrat...

SiYuan has Stored XSS to RCE via Unsanitized Bazaar Package Metadata

Stored XSS to RCE via Unsanitized Bazaar Package Metadata Summary SiYuan's Bazaar community marketplace renders package metadata fields displayName, description using template literals without HTML escaping. A malicious package author can inject arbitrary HTML/JavaScript into these fields, which...

PT-2026-26097

Name of the Vulnerable Software and Affected Versions SiYuan versions 3.5.9 and earlier SiYuan versions 3.6.0 and below Description SiYuan, a personal knowledge management system, is affected by a critical issue allowing for cross-site scripting XSS that can escalate to remote code execution RCE...