by Kastro
Paper/Archive/CVE-2025-59717

CVE-2025-59717

DigitalOcean @digitalocean/do-markdownit — In the @digitalocean/do-markdownit package through 1.16.1 (in npm), the callout and fence_environment plugins perform .includes substring…

EPSS 0.4%public exploitCVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 32.8.328 × 206.6Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
@digitalocean/do-markdownit≤ 1.16.1–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitre (CNA)5.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: partial

References

refgithub.com/digitalocean/do-markdownitexploitgist.github.com/thesmartshadow/dd19665f1f51a4e3c7a766e70c9eafd0refnpmjs.com/package/@digitalocean/do-markdownit