CVE-2026-25647— Lute has a Stored Cross-Site Scripting (XSS) via Markdown hyperlink
Quick assessment
Affected
siyuan-note siyuan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
lute是D个人开发者的一款结构化的Markdown引擎。 lute 1.7.6及之前版本存在跨站脚本漏洞，该漏洞源于Markdown渲染引擎存在存储型跨站脚本，可能导致在用户会话环境中执行恶意JavaScript。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-25647
Vulnerability Information
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Vulnerability Title
Lute has a Stored Cross-Site Scripting (XSS) via Markdown hyperlink
Source: CVE Program / CVE List V5
Vulnerability Description
Lute is a structured Markdown engine supporting Go and JavaScript. Lute 1.7.6 and earlier (as used in SiYuan before) has a Stored Cross-Site Scripting (XSS) vulnerability in the Markdown rendering engine. An attacker can inject malicious JavaScript into a Markdown text/note. When another user clicks the rendered content, the script executes in the context of their session.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A: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
lute 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
lute是D个人开发者的一款结构化的Markdown引擎。 lute 1.7.6及之前版本存在跨站脚本漏洞，该漏洞源于Markdown渲染引擎存在存储型跨站脚本，可能导致在用户会话环境中执行恶意JavaScript。
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 | < 3.5.5 | - |
|
II. Public POCs for CVE-2026-25647
| # | POC Description | Source Link | Shenlong Link |
|---|
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