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I. Basic Information for CVE-2025-5276
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
All versions of the package mcp-markdownify-server are vulnerable to Server-Side Request Forgery (SSRF) via the Markdownify.get() function. An attacker can craft a prompt that, once accessed by the MCP host, can invoke the webpage-to-markdown, bing-search-to-markdown, and youtube-to-markdown tools to issue requests and read the responses to attacker-controlled URLs, potentially leaking sensitive information.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Markdownify MCP Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Markdownify MCP Server是美国Zach Caceres个人开发者的一个用于将几乎所有内容转换为 Markdown 的模型上下文协议服务器。 Markdownify MCP Server存在安全漏洞,该漏洞源于Markdownify.get函数可能导致服务端请求伪造。
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
VendorProductAffected VersionsCPESubscribe
-mcp-markdownify-server 0 ~ * -
II. Public POCs for CVE-2025-5276
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III. Intelligence Information for CVE-2025-5276
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IV. Related Vulnerabilities
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