CVE-2025-59526

LOWNVD 2.72.7—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 2.7 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
2.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 2.7Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Prior to version 2.0.30, there is an HTML injection vulnerability in plaintext e-mails generated by Mailgen. Projects are affected if the Mailgen.generatePlaintext(email) method is used and given user-generated content. This vulnerability has been patched in version 2.0.30. A workaround involves stripping all HTML tags before passing any content into Mailgen.generatePlaintext(email).

CVSS v3
2.7
EG Score
2.7(medium)
EPSS
33.0%
KEV
Not listed

Published

September 22, 2025

Last Modified

April 15, 2026

References (2)

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
mailgen—2.0.30—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 101 total refreshes for this CVE.

  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-09 19:09 UTCEPSS rescore
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  23. 2026-06-26 03:46 UTCOSV refresh
  24. 2026-06-25 13:49 UTCEPSS rescore
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  1. 2026-06-24 14:04 UTCEPSS rescore
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  25. 2026-06-08 15:28 UTCEG score recompute▲ 2.70
  26. 2026-06-08 14:16 UTCEPSS rescore
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  65. 2026-05-21 07:28 UTCEG score recompute
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-59526?
CVE-2025-59526 is a low vulnerability published on September 22, 2025. mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Prior to version 2.0.30, there is an HTML injection vulnerability in plaintext e-mails generated by Mailgen. Projects are affected if the Mailgen.generatePlaintext(email) method is used and given…
When was CVE-2025-59526 disclosed?
CVE-2025-59526 was first published in the National Vulnerability Database on September 22, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-59526 actively exploited?
CVE-2025-59526 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-59526?
CVE-2025-59526 has a CVSS v3 base score of 2.7 (NVD).
How do I remediate CVE-2025-59526?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-59526, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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