CVE-2026-23850— SiYuan vulnerable to arbitrary file read
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I. Basic Information for CVE-2026-23850
Vulnerability Information
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Vulnerability Title
SiYuan vulnerable to arbitrary file read
Source: NVD (National Vulnerability Database)
Vulnerability Description
SiYuan is a personal knowledge management system. In versions prior to 3.5.4, the markdown feature allows unrestricted server side html-rendering which allows arbitrary file read (LFD). Version 3.5.4 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
SiYuan 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SiYuan是SiYuan开源的一个隐私至上的个人知识管理系统。 SiYuan 3.5.4之前版本存在路径遍历漏洞，该漏洞源于markdown功能允许不受限制的服务器端HTML渲染，可能导致任意文件读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| siyuan-note | siyuan | < 3.5.4 | - |
II. Public POCs for CVE-2026-23850
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patch · 2
Same Patch Batch · siyuan-note · 2026-01-19 · 4 CVEs total
| CVE-2026-23847 | SiYuan Vulnerable to Reflected Cross-Site Scripting (XSS) via /api/icon/getDynamicIcon | |
| CVE-2026-23851 | SiYuan Vulnerable to Arbitrary File Read via File Copy Functionality | |
| CVE-2026-23852 | SiYuan vulnerable to Stored XSS / RCE via `setBlockAttrs` icon attribute |
IV. Related Vulnerabilities
Same product: siyuan
- CVE-2026-44670
SiYuan: Stored XSS via Attribute View name to Electron rende - CVE-2026-44588
SiYuan: URL-encoded title bypasses `escapeAriaLabel`, decode - CVE-2026-45147
SiYuan: Broken access control in SiYuan `/api/tag/getTag` — - CVE-2026-45148
SiYuan: Broken access control in SiYuan publish-mode Readers - CVE-2026-45371
SiYuan: SiYuan publish-mode Reader can mutate Conf and SQL i
Same vendor: siyuan-note
- CVE-2026-44670
SiYuan: Stored XSS via Attribute View name to Electron rende - CVE-2026-44588
SiYuan: URL-encoded title bypasses `escapeAriaLabel`, decode - CVE-2026-45147
SiYuan: Broken access control in SiYuan `/api/tag/getTag` — - CVE-2026-45148
SiYuan: Broken access control in SiYuan publish-mode Readers - CVE-2026-45371
SiYuan: SiYuan publish-mode Reader can mutate Conf and SQL i
Same weakness: CWE-22
- CVE-2026-47091
Claude HUD 0.0.12 Path Traversal via transcript_path - CVE-2026-45230
DumbAssets 1.0.11 Path Traversal File Deletion via /api/dele - CVE-2026-8802
opensourcepos Open Source Point of Sale Items.php getPicThum - CVE-2026-8770
continuedev continue JSON-RPC Server lsTool.ts lsTool path t - CVE-2026-8765
Kilo-Org kilocode File Diff API Endpoint worktree-diff.ts Bu
V. Comments for CVE-2026-23850
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