CVE-2025-5276
High
Description
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.
SeverityHigh
CVSS7.4
Exploit probability—
ProductMcp-markdownify-server
PublishedMay 29, 2025
First seenMay 29, 2025
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mcp-markdownify-servernpm | v ≤ 0.0.1 | — |
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