CVE-2026-59833— SiYuan: Stored XSS to RCE in SiYuan via a per-attribute URL-scheme sanitizer gap in Lute (form action / SVG xlink:href)
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| siyuan-note | siyuan | < 3.7.1 | affected |
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I. Basic Information for CVE-2026-59833
Vulnerability Information
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Vulnerability Title
SiYuan: Stored XSS to RCE in SiYuan via a per-attribute URL-scheme sanitizer gap in Lute (form action / SVG xlink:href)
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
SiYuan 输出处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SiYuan是SiYuan团队开源的一个个人知识管理系统。 SiYuan 3.7.1之前版本存在安全漏洞，该漏洞源于Lute引擎未检查form action或SVG xlink:href属性，允许在文档导出预览和Bazaar包README渲染路径中存储跨站脚本，可在Electron桌面渲染器中执行操作系统命令。
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 | < 3.7.1 | - |
II. Public POCs for CVE-2026-59833
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-59833 (1)
Vendor Pages for CVE-2026-59833 (1)
- 🔗 Release Improve details · siyuan-note/siyuan · GitHubx_refsource_MISC
Same Patch Batch · siyuan-note · 2026-07-09 · 6 CVEs total
| CVE-2026-59832 | 7.7 HIGH | SiYuan: Authenticated path traversal in /snippets/ static handler (serveSnippets) leaks co |
| CVE-2026-59834 | 7.5 HIGH | SiYuan: SQL Query in Block Search Exposes Hidden Published Document Content |
| CVE-2026-59853 | 6.5 MEDIUM | SiYuan: Publish-mode Reader can exfiltrate private saved-search Criteria via /api/storage/ |
| CVE-2026-59854 | 4.9 MEDIUM | SiYuan: Incomplete IsSensitivePath denylist: globalCopyFiles reads home-dir credential dot |
| CVE-2026-59855 | SiYuan: Store XSS To Rce via Asset.render |
IV. Related Vulnerabilities
Same product: siyuan
- CVE-2026-66396
SiYuan before v3.7.2 Stored XSS to RCE via title-img IAL - CVE-2026-66395
SiYuan Desktop before v3.7.2 Reflected XSS to RCE via siyuan - CVE-2026-66394
SiYuan before v3.7.3 Stored and Reflected XSS via SVG Saniti - CVE-2026-66012
SiYuan before v3.7.2 Unauthenticated Administrator Takeover - CVE-2026-65607
SiYuan before v3.7.2 Path Traversal via /export/temp/
Same vendor: siyuan-note
- CVE-2026-66396
SiYuan before v3.7.2 Stored XSS to RCE via title-img IAL - CVE-2026-66395
SiYuan Desktop before v3.7.2 Reflected XSS to RCE via siyuan - CVE-2026-66394
SiYuan before v3.7.3 Stored and Reflected XSS via SVG Saniti - CVE-2026-66012
SiYuan before v3.7.2 Unauthenticated Administrator Takeover - CVE-2026-65607
SiYuan before v3.7.2 Path Traversal via /export/temp/
Same weakness: CWE-79
- CVE-2026-18084
Cross-Site Scripting (XSS) in time zone parameter of BlackBe - CVE-2026-7775
Cross-site Scripting Security Vulnerability in IBM Sterling - CVE-2026-67174
DOM-Based Cross-Site Scripting via Unsafe String and SVG Ico - CVE-2026-66921
Pivotick - Stored DOM-Based Cross-Site Scripting via Unescap - CVE-2026-66919
Stored DOM-Based Cross-Site Scripting in Node Modal Headers
V. Comments for CVE-2026-59833
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