Vulnerability · Published Nov 21, 2025 · Assigned by GitHub_M
CVE-2025-65108md-to-pdf is vulnerable to arbitrary JavaScript code execution when parsing front matter
Critical 10.0
In plain English
A critical-severity code injection in md-to-pdf from simonhaenisch. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
md-to-pdf is a CLI tool for converting Markdown files to PDF using Node.js and headless Chrome. Prior to version 5.2.5, a Markdown front-matter block that contains JavaScript delimiter causes the JS engine in gray-matter library to execute arbitrary code in the Markdown to PDF converter process of md-to-pdf library, resulting in remote code execution. This issue has been patched in version 5.2.5.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | md-to-pdf | 5.2.5 | GHSA-547r-qmjm-8hvw |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| simonhaenisch | md-to-pdf | < 5.2.5 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H