What is CVE-2026-13414?

CVE-2026-13414 is a medium-severity vulnerability in Cmp, classified under Missing Authorization. CVSS score: 4.8/10. Published 2026-08-27.

How severe is CVE-2026-13414?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Auth bypass in Cmp

CVE-2026-13414

The CMP WordPress plugin before 4.1.18 does not perform authorization checks on one of its AJAX actions and relies on a nonce that is skipped for certain (and exposed to anonymous visitors on others), allowing unauthenticated attackers to disable the site's maintenance/coming-soon mode under a non-default countdown configuration.

Vulnerability class: Broken Access Control

EPSS: 0.001 (3.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Unknown Cmp

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-13414?: CVE-2026-13414 is a medium-severity vulnerability in Cmp, classified under Missing Authorization. CVSS score: 4.8/10. Published 2026-08-27.
How severe is CVE-2026-13414?: Medium severity. CVSS v3 base score is 4.8 out of 10.