What is CVE-2026-0674?

CVE-2026-0674 is a medium-severity vulnerability in Campaign Monitor For WordPress, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-01-08.

How severe is CVE-2026-0674?

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

Auth bypass in Campaign Monitor For WordPress

CVE-2026-0674

Missing Authorization vulnerability in Campaign Monitor Campaign Monitor for WordPress allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Campaign Monitor for WordPress: from n/a through 2.9.1.

Vulnerability class: Broken Access Control

EPSS: 0.002 (10.4th 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:L/A:N.

Affected products

Campaign Monitor For Wordpress — versions n/a, 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

patchstack.com/database/Wordpress/Plugin/forms-for-campaign-monitor/vulnerabili… (vdb-entry)
audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-0674?: CVE-2026-0674 is a medium-severity vulnerability in Campaign Monitor For WordPress, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-01-08.
How severe is CVE-2026-0674?: Medium severity. CVSS v3 base score is 4.3 out of 10.