CVE-2025-5276
CVE-2025-5276
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.2 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
mcp-markdownify-server
- Versions
- ≥ 0, < 1.0.0: Affected (semver)
Update to 1.0.0
mcp-markdownify-server npm
- Affected ranges
- SEMVER: ≤ 0.0.1
No fix published
Original sources
- https://security.snyk.io/vuln/SNYK-JS-MCPMARKDOWNIFYSERVER-10249387
- https://github.com/zcaceres/markdownify-mcp/commit/0284aa8f34d32c65e20d8cda2d429b7943c9af03
- https://github.com/zcaceres/markdownify-mcp/blob/224cf89f0d58616d2a5522f60f184e8391d1c9e3/src/server.ts%23L20C17-L20C29
- https://nvd.nist.gov/vuln/detail/CVE-2025-5276