CVE-2026-69084-PoC

CVE-2026-69084 / CVE-2026-69085 — SiYuan Arbitrary SQL Execution & SQLi CVE-2026-69084: Arbitrary SQL Execution via /api/search/searchEmbedBlock CVE-2026-69085: SQL Injection via /api/filetree/searchDocs CVSS 9.9 Critical each · CWE-89 · SiYuan --check 2. DB-write proof: CREATE TABLE + INSERT...

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 2.9.0-3.8.6 - Unauthenticated XSS via check-auth "to" Parameter

SiYuan 2.9.0 through 3.8.6 serves the unauthenticated /check-auth authorization page app/stage/auth.html with a script that assigns the to query parameter to window.location.href without scheme validation. A crafted link whose to value is a javascript: URI executes script in the kernel origin onc...

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 <=3.7.2 - SQL Injection

SiYuan before v3.7.3 contains a SQL injection caused by direct concatenation of the keyword parameter in /api/filetree/searchDocs endpoint, letting attackers with publish RoleReader token or unauthenticated in publish mode read and modify database content. id: CVE-2026-69085 info: name: SiYuan...

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 <= 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:...

CVE-2026-69083_exploit

CVE-2026-69083 — SiYuan Unauthenticated SQL Injection Unauthenticated SQL injection in SiYuan a Go-based knowledge-base app via the asset-content search endpoint. POST /api/search/fullTextSearchAssetContent builds a raw SQL statement by concatenating the user-controlled query value straight into ...

CVE-2026-126266

SiYuan from 3.6.0 before 3.8.9 contains an information disclosure vulnerability that allows unauthenticated publish visitors to bypass per-document passwords via regex search in getDoc. Attackers can send POST requests to /api/filetree/getDoc with queryMethod 3 and a broad regex to read protected...

EUVD-2026-125257

SiYuan before 3.8.9 contains an information disclosure vulnerability that allows authenticated Reader users to retrieve credential-named widget files by bypassing the sensitive-path guard in getFile. Attackers can request paths like /data/widgets//credentials.json for publish-referenced widgets t...

CVE-2026-126264

SiYuan versions before 3.8.9 are vulnerable to an information disclosure vulnerability. Authenticated Reader users can bypass the sensitive-path guard in the /api/file/getFile endpoint to retrieve credential-named widget files. By requesting specific paths such as /data/widgets//credentials.json ...

CVE-2026-126264 SiYuan before 3.8.9 Sensitive File Disclosure via /api/file/getFile

SiYuan before 3.8.9 contains an information disclosure vulnerability that allows authenticated Reader users to retrieve credential-named widget files by bypassing the sensitive-path guard in getFile. Attackers can request paths like /data/widgets//credentials.json for publish-referenced widgets t...

CVE-2026-126265 SiYuan 2.1.0 before 3.8.9 CAPTCHA Bypass via Stale Login Cookie

SiYuan 2.1.0 before 3.8.9 contains a flaw where the loginAuth CAPTCHA challenge lives in a signed client-side cookie, allowing reuse of a solved challenge. Attackers can replay the original signed siyuan cookie with distinct wrong access codes to brute-force the code and gain an administrator...

CVE-2026-126265

The SiYuan application, version 2.1.0 before 3.8.9, is vulnerable to a CAPTCHA Bypass due to a flaw in how the loginAuth challenge is handled. The challenge is stored in a signed client-side cookie , which allows an attacker to reuse a previously solved challenge. By replaying the original signed...

EUVD-2026-125256

SiYuan 2.1.0 before 3.8.9 contains a flaw where the loginAuth CAPTCHA challenge lives in a signed client-side cookie, allowing reuse of a solved challenge. Attackers can replay the original signed siyuan cookie with distinct wrong access codes to brute-force the code and gain an administrator...

CVE-2026-126266 SiYuan from 3.6.0 before 3.8.9 Publish-Password Bypass via getDoc Regex Keywords

SiYuan from 3.6.0 before 3.8.9 contains an information disclosure vulnerability that allows unauthenticated publish visitors to bypass per-document passwords via regex search in getDoc. Attackers can send POST requests to /api/filetree/getDoc with queryMethod 3 and a broad regex to read protected...