What is CVE-2025-66525?

CVE-2025-66525 is a medium-severity vulnerability in Elastic Email Sender, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-12-09.

How severe is CVE-2025-66525?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Elastic Email Sender

CVE-2025-66525

Missing Authorization vulnerability in Elastic Email Elastic Email Sender elastic-email-sender allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Elastic Email Sender: from n/a through <= 1.2.20.

Vulnerability class: Broken Access Control

EPSS: 0.002 (15.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Elastic Email Sender — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-66525?: CVE-2025-66525 is a medium-severity vulnerability in Elastic Email Sender, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-12-09.
How severe is CVE-2025-66525?: Medium severity. CVSS v3 base score is 4.3 out of 10.