CVE-2026-15505— vnotex vnote YAML Frontmatter markdownit.js cross site scripting
Quick assessment
Affected
vnotex vnote
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.
VNote是VNote个人开发者开源的一款开源的跨平台Markdown笔记工具。 VNote 3.20.1及之前版本存在安全漏洞，该漏洞源于YAML Frontmatter组件的文件/src/data/extra/web/js/markdownit.js中参数p_metaData操作不当，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-15505
Vulnerability Information
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Vulnerability Title
vnotex vnote YAML Frontmatter markdownit.js cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in vnotex vnote up to 3.20.1. Impacted is an unknown function of the file /src/data/extra/web/js/markdownit.js of the component YAML Frontmatter. This manipulation of the argument p_metaData causes cross site scripting. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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
VNote 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VNote是VNote个人开发者开源的一款开源的跨平台Markdown笔记工具。 VNote 3.20.1及之前版本存在安全漏洞，该漏洞源于YAML Frontmatter组件的文件/src/data/extra/web/js/markdownit.js中参数p_metaData操作不当，可能导致跨站脚本攻击。
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
II. Public POCs for CVE-2026-15505
| # | POC Description | Source Link | Shenlong Link |
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IV. Related Vulnerabilities
Same product: vnote
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CVE-2026-86022
VNote: Argument injection to arbitrary command execution via -
CVE-2026-86016
VNote: Stored XSS via YAML Frontmatter Leading to Local File -
CVE-2024-41662
VNote vulnerable to Markdown XSS, which leads to RCE -
CVE-2024-39904
Code Execution Vulnerability via Local File Path Traversal i -
CVE-2023-5701
vnotex vnote Markdown File cross site scripting
Same vendor: vnotex
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CVE-2026-86022
VNote: Argument injection to arbitrary command execution via -
CVE-2026-86016
VNote: Stored XSS via YAML Frontmatter Leading to Local File -
CVE-2024-41662
VNote vulnerable to Markdown XSS, which leads to RCE -
CVE-2024-39904
Code Execution Vulnerability via Local File Path Traversal i -
CVE-2023-5701
vnotex vnote Markdown File cross site scripting
Same weakness: CWE-79
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V. Comments for CVE-2026-15505
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