How severe is CVE-2025-59717?

CVE-2025-59717 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-59717 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59717?

CVE-2025-59717 affects Digitalocean Do-markdownit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59717?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-59717 have an EU (EUVD) identifier?

Yes. CVE-2025-59717 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30235.

When was CVE-2025-59717 published?

CVE-2025-59717 was published on 2025-09-19 and last updated on 2026-06-17.

CVE-2025-59717

CVE-2025-59717 is a medium-severity vulnerability in Digitalocean Do-markdownit with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-843.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30235
Weakness: CWE-843
Affected product: Digitalocean Do-markdownit
Published: 2025-09-19
Last modified: 2026-06-17

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).

Frequently asked questions

What is CVE-2025-59717?: 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).
How severe is CVE-2025-59717?: CVE-2025-59717 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-59717 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59717?: CVE-2025-59717 affects Digitalocean Do-markdownit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59717?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59717 have an EU (EUVD) identifier?: Yes. CVE-2025-59717 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30235.
When was CVE-2025-59717 published?: CVE-2025-59717 was published on 2025-09-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:digitalocean:do-markdownit:*:*:*:*:*:node.js:*:*

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