What is the CVSS score of CVE-2025-59717?

CVE-2025-59717 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Node.js are affected by CVE-2025-59717?

CVE-2025-59717 presents moderate security risk rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available.

Is there a public PoC exploit available for CVE-2025-59717?

Yes, a public proof-of-concept exploit is available for CVE-2025-59717. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-59717?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Node.js CVE-2025-59717

MEDIUM

Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)

2025-09-19 cve@mitre.org

Memory Corruption Information Disclosure Node.js Do Markdownit

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:13 vuln.today

PoC Detected

Oct 08, 2025 - 16:23 vuln.today

Public exploit code

CVE Published

Sep 19, 2025 - 04:16 nvd

MEDIUM 5.4

DescriptionCVE.org

AnalysisAI

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. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Access of Resource Using Incompatible Type (Type Confusion) (CWE-843), which allows attackers to execute arbitrary code by exploiting type confusion in the application. 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). Affected products include: Digitalocean Do-Markdownit. Version information: through 1.16.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Enforce strict type checking, use type-safe languages, validate object types before operations.

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CVE-2025-59717 vulnerability details – vuln.today

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Node.js CVE-2025-59717

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code