simonhaenisch md-to-pdf up to 5.2.4 Markdown File code injection

Summaryinfo

A vulnerability marked as critical has been reported in simonhaenisch md-to-pdf up to 5.2.4. This vulnerability affects unknown code of the component Markdown File Handler. The manipulation leads to code injection. This vulnerability is documented as CVE-2025-65108. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in simonhaenisch md-to-pdf up to 5.2.4. This issue affects an unknown code of the component Markdown File Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-65108 since 11/17/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

Upgrading to version 5.2.5 eliminates this vulnerability. Applying the patch 46bdcf2051c8d1758b391c1353185a179a47a4d9 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• simonhaenisch

Name

• md-to-pdf

Version

• 5.2.0
• 5.2.1
• 5.2.2
• 5.2.3
• 5.2.4

License

• open-source

Website

• Product: https://github.com/simonhaenisch/md-to-pdf/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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