CVE-2025-5276CWE-918

Versions of the package mcp-markdownify-server before 1.0.0 are vulnerable to Server-Side Request Forgery (SSRF) via the Markdownify.get() function

High · published May 29, 2025

CVSS v4.0
8.2
EPSS
0%
Percentile
33.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.2 · HIGH
Vector
CVSS: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:P
EPSS
0.00400 · 33.1th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2025-05-29T05:00Z
EPSS history
Timeline
  • 29 MAY 05:00Z
    Versions of the package mcp-markdownify-server before 1.0.0 are vulnerable to Server-Side Request Forgery (SSRF) via the Markdownify.get() function
    cvelistv5