CVE-2025-59717
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-19

Last updated on: 2025-10-08

Assigner: MITRE

Description
In the @digitalocean/do-markdownit package through 1.16.1 (in npm), the callout and fence_environment plugins perform .includes substring matching if allowedClasses or allowedEnvironments is a string (instead of an array).
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Meta Information
Published
2025-09-19
Last Modified
2025-10-08
Generated
2026-06-16
AI Q&A
2025-09-19
EPSS Evaluated
2026-06-14
NVD
CVE-2025-59717
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
digitalocean do-markdownit to 1.16.1 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-NVD-CWE-Other
CWE-843 The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
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Executive Summary

This vulnerability exists in the @digitalocean/do-markdownit package through version 1.16.1. The issue is that the callout and fence_environment plugins perform substring matching using the .includes method when allowedClasses or allowedEnvironments is a string instead of an array. This can lead to unintended matches and potentially incorrect behavior in how classes or environments are validated or processed.

Impact Analysis

The vulnerability can impact you by causing the callout and fence_environment plugins to incorrectly validate or process allowed classes or environments due to substring matching. This may lead to security issues such as improper content rendering or injection of unintended classes or environments, potentially affecting the integrity and security of the markdown processing.

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