CVE-2025-5276
CVSS Score
7.4
EPSS Score
0.3%
EPSS Percentile
25th
Versions of the package mcp-markdownify-server before 1.0.0 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.
| CWE | CWE-918 |
| Vendor | n/a |
| Product | mcp-markdownify-server |
| Published | May 29, 2025 |
| Last Updated | Jul 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:P Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
n/a / mcp-markdownify-server
0 < 1.0.0
References
security.snyk.io: https://security.snyk.io/vuln/SNYK-JS-MCPMARKDOWNIFYSERVER-10249387 github.com: https://github.com/zcaceres/markdownify-mcp/commit/0284aa8f34d32c65e20d8cda2d429b7943c9af03 github.com: https://github.com/zcaceres/markdownify-mcp/blob/224cf89f0d58616d2a5522f60f184e8391d1c9e3/src/server.ts%23L20C17-L20C29
Credits
Raul Onitza-Klugman (Snyk Security Research)