CVE-2025-5276

High severity, CVSS 7.4. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Published 2025-05-29. Last modified 2026-07-02.