CVE-2025-5273: Markdownify MCP Server allows attackers to read arbitrary files
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.
References
- github.com/advisories/GHSA-22v8-p7h2-rj7p
- github.com/zcaceres/markdownify-mcp
- github.com/zcaceres/markdownify-mcp/blob/3667bd4765c0e49684ce22df268d02dd478a7f3b/src/Markdownify.ts
- github.com/zcaceres/markdownify-mcp/commit/3a6b202d088ef7acb8be84bc09515f41a2b1a9df
- nvd.nist.gov/vuln/detail/CVE-2025-5273
- security.snyk.io/vuln/SNYK-JS-MCPMARKDOWNIFYSERVER-10249193
Code Behaviors & Features
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