What’s Vulnerable › Vulnerabilities

CVE-2025-65108: md-to-pdf is vulnerable to arbitrary JavaScript code execution when parsing front matter

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-21 · updated 2026-10-18
• Weakness: CWE-94

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 products

• simonhaenisch md-to-pdf: before 5.2.5

References

• https://github.com/simonhaenisch/md-to-pdf/commit/46bdcf2051c8d1758b391c1353185a179a47a4d9
• https://github.com/simonhaenisch/md-to-pdf/security/advisories/GHSA-547r-qmjm-8hvw

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