How severe is CVE-2026-15426?

High severity. CVSS v3 base score is 8.8 out of 10.

Privilege escalation in Acyba Acymailing – An Ultimate Newsletter Plugin And Marketing Automation Solution For Wordpress

CVE-2026-15426

The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 10.11.1. This is due to the plugin not properly…

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Acyba Acymailing – An Ultimate Newsletter Plugin And Marketing Automation Solution For Wordpress — versions 0

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

Frequently asked questions

What is CVE-2026-15426?: CVE-2026-15426 is a high-severity vulnerability in Acyba Acymailing – An Ultimate Newsletter Plugin And Marketing Automation Solution For Wordpress, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-08-11.
How severe is CVE-2026-15426?: High severity. CVSS v3 base score is 8.8 out of 10.