GHSA-frq9-3hp2-xvxg

Suggest an improvement
Source
https://github.com/advisories/GHSA-frq9-3hp2-xvxg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-frq9-3hp2-xvxg/GHSA-frq9-3hp2-xvxg.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-frq9-3hp2-xvxg
Aliases
Published
2025-05-29T06:31:17Z
Modified
2025-05-29T17:42:15Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Markdownify MCP Server allows Server-Side Request Forgery (SSRF) via the Markdownify.get() function
Details

All versions of the package mcp-markdownify-server 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.

Database specific 
{
    "cwe_ids":  [
        "CWE-918"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2025-05-29T17:27:26Z",
    "nvd_published_at":  "2025-05-29T05:15:21Z",
    "severity":  "MODERATE"
}
References

Affected packages

npm / mcp-markdownify-server

Package

Name
mcp-markdownify-server
View open source insights on deps.dev
Purl
pkg:npm/mcp-markdownify-server

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
0.0.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-frq9-3hp2-xvxg/GHSA-frq9-3hp2-xvxg.json"