SiYuan <= v3.5.9 - SVG Animate Element XSS

SiYuan = v3.5.9 contains a reflected XSS caused by insufficient SVG sanitization allowing SVG animation elements to inject executable JavaScript in /api/icon/getDynamicIcon endpoint, letting unauthenticated attackers execute scripts. id: CVE-2026-31807 info: name: SiYuan = v3.5.9 - SVG Animate...

SiYuan <= v3.6.1 - Bookmark Data Disclosure

SiYuan v3.6.2 contains an information disclosure vulnerability caused by improper authorization checks in the publish service's bookmark filtering, letting unauthenticated visitors access bookmarked blocks from password-protected documents, exploit requires access to the publish service. id:...

SiYuan <= v3.6.1 - Path Traversal

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under /appearance/filepath. Due to improper path sanitization, attackers can perform directory traversal and read arbitrary files accessible to the server...

SiYuan <= 3.6.5 - Unauthenticated Path Traversal

SiYuan = 3.6.5 contains a path traversal via double URL-encoding in the /assets/ route publish mode port 6808, allowing unauthenticated attackers to read arbitrary files inside WorkspaceDir including conf/conf.json which exposes the API token and access auth code. id: CVE-2026-54066 info: name:...

SiYuan Note <= 3.6.5 - Authentication Bypass

SiYuan Note 3.6.5 and prior is vulnerable to authentication bypass. The CheckAuth middleware unconditionally trusted all chrome-extension:// origins, granting RoleAdministrator access without token validation to any request with a spoofed Origin header. Fixed in v3.7.0. id: CVE-2026-54069 info:...

SiYuan Note - Cross-Site Scripting

Unauthenticated reflected cross-site scripting XSS vulnerability in all versions of SiYuan Note containing /api/icon/getDynamicIcon with unsafe type=8 rendering logic. Attacker-controlled content is inserted directly into SVG output without proper sanitization. An attacker can execute arbitrary...

SiYuan <= v3.5.9 - Cross Site Scripting

SiYuan v3.5.10 contains a reflected XSS caused by improper sanitization of javascript: href attributes allowing ASCII control characters to bypass prefix checks in SVG sanitizer, letting unauthenticated attackers execute JavaScript via /api/icon/getDynamicIcon. id: CVE-2026-31809 info: name: SiYu...

CVE-2026-55570

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, it does not escape the untrusted fields name, version, author, description when they are serialized into the data-obj HTML attribute of each marketplace card. Because the attribute is single-quoted and the value is...

CVE-2026-54069

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-extension:// origins, granting RoleAdministrator access to every installed browser extension without any authentication. Combined with the default empt...

CVE-2026-54067

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, CSS snippet body containing breaks out of its surrounding tag when renderSnippet interpolates it via insertAdjacentHTML. A payload like runs arbitrary JavaScript in the renderer. On Electron desktop builds the renderer...

CVE-2026-54068

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the /api/icon/getDynamicIcon endpoint is explicitly excluded from authentication in SiYuan's kernel router router.go, "不需要鉴权" -- no auth needed. When called with type=8 and a valid block id parameter, this endpoint...

CVE-2026-54158

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the attribute-view database cell renderer genAVValueHTML interpolates cell content raw in four of its branches: text, url, phone, and mAsset. A cell value like or " breaks out of its surrounding tag and runs arbitrary...

CVE-2026-54759

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove elements. Combined with the SiYuan Electron client's permissive security configuration, an attacker can include a malicious in a Bazaar package README that executes arbitrary...

CVE-2026-50551

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan contains a stored cross-site scripting XSS vulnerability in the Attribute View database asset cell renderer that escalates to remote code execution RCE in the Electron desktop client. This vulnerability is fixed...

CVE-2026-55570

Technical details are not publicly available in the provided documents. Monitor for updates.

CVE-2026-55570 SiYuan: Stored XSS results to Electron RCE in SiYuan marketplace via unescaped `data-obj` attribute (Bypass for CVE-2026-45375's patch)

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, it does not escape the untrusted fields name, version, author, description when they are serialized into the data-obj HTML attribute of each marketplace card. Because the attribute is single-quoted and the value is...

CVE-2026-54759

SiYuan’s Lute HTML sanitizer (prior to version 3.7.0) fails to remove elements. When combined with the SiYuan Electron client’s permissive security configuration, a malicious in a Bazaar package README can trigger arbitrary command execution on the victim’s machine when package details are view...

CVE-2026-54759 SiYuan: Lute HTML sanitizer allows `<iframe>` tags in Bazaar package README, leading to arbitrary command execution via SiYuan Electron client

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove elements. Combined with the SiYuan Electron client's permissive security configuration, an attacker can include a malicious in a Bazaar package README that executes arbitrary...

CVE-2026-50551

CVE-2026-50551 affects SiYuan prior to 3.7.0, where a stored XSS in the Attribute View (database) asset cell renderer can escalate to remote code execution in the Electron desktop client. The issue is fixed in 3.7.0. CVSS~3.1 metrics indicate high impact on confidentiality, integrity, and availab...

CVE-2026-50551 SiYuan: Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan contains a stored cross-site scripting XSS vulnerability in the Attribute View database asset cell renderer that escalates to remote code execution RCE in the Electron desktop client. This vulnerability is fixed...