CVE-2025-5273 | THREATINT

Description

All versions of the package mcp-markdownify-server are vulnerable to Files or Directories Accessible to External Parties via the get-markdown-file tool. An attacker can craft a prompt that, once accessed by the MCP host, will allow it to read arbitrary files from the host running the server.

Reserved 2025-05-27 | Published 2025-05-29 | Updated 2025-05-29 | Assigner snyk

HIGH: 8.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:PMEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P

Problem types

Files or Directories Accessible to External Parties

Credits

Raul Onitza-Klugman (Snyk Security Research)

References

security.snyk.io/vuln/SNYK-JS-MCPMARKDOWNIFYSERVER-10249193

github.com/...ommit/3a6b202d088ef7acb8be84bc09515f41a2b1a9df

github.com/...4ce22df268d02dd478a7f3b/src/Markdownify.ts#L94

cve.org (CVE-2025-5273)

nvd.nist.gov (CVE-2025-5273)

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