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 <= 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...

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 - SQL Execution

SiYuan = v3.7.2 contains a SQL injection caused by passing client-supplied SQL statements verbatim to the main read-write database handle in /api/search/searchEmbedBlock, letting attackers with publish RoleReader token or anonymous access read and modify content, exploit requires publish RoleRead...

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 <= v3.5.9 - 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 <= 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 - 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...

CVE-2026-69084-PoC

CVE-2026-69084 / CVE-2026-69085 — Esecuzione SQL Arbitraria e SQLi in SiYuan CVE-2026-69084: Esecuzione SQL Arbitraria tramite /api/search/searchEmbedBlock CVE-2026-69085: SQL Injection tramite /api/filetree/searchDocs CVSS 9.9 Critico ciascuna · CWE-89 · SiYuan = v3.7.2 corretto in v3.7.3...

siyuan-mcp-admin-takeover-cve-2026-66012-missing-authorization

CVE-2026-66012 — SiYuan MCP: acquisizione dei privilegi di amministratore senza autenticazione Proof of Concept per CVE-2026-66012 CVSS 10.0 Critico, una vulnerabilità di autorizzazione mancante nell'endpoint MCP Model Context Protocol di SiYuan che consente a un attaccante non autenticato di...

CVE-2026-82234

SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the httprequest and webfetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public...

CVE-2026-82233

SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into t...

CVE-2026-82234

SiYuan versions before v3.8.1 are affected by a server-side request forgery (SSRF) vulnerability in the http_request and web_fetch agent tools. The root cause is a time-of-check/time-of-use (TOCTOU) flaw: DNS resolution is performed only at guard time, while the actual connect-time resolution is ...

EUVD-2026-67686

SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the httprequest and webfetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public...

CVE-2026-82234 SiYuan before v3.8.1 SSRF via DNS-Rebinding TOCTOU

SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the httprequest and webfetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public...

CVE-2026-82234 SiYuan before v3.8.1 SSRF via DNS-Rebinding TOCTOU

SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the httprequest and webfetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public...

EUVD-2026-67685

SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into t...

CVE-2026-82233

SiYuan before v3.8.1 is affected by a path traversal vulnerability in the asset.upload MCP tool , which accepts arbitrary absolute file paths without workspace boundary validation. An attacker can leverage prompt injection to induce the AI Agent to upload sensitive files—such as SSH keys or crede...

CVE-2026-82233 SiYuan before v3.8.1 Path Traversal via asset.upload

SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into t...

CVE-2026-69083_exploit

CVE-2026-69083 — Iniezione SQL non autenticata in SiYuan Iniezione SQL non autenticata in SiYuan un'applicazione knowledge-base basata su Go tramite l'endpoint di ricerca asset-content. POST /api/search/fullTextSearchAssetContent costruisce un'istruzione SQL grezza concatenando il valore query...