CVE-2026-23547: Cmsmasters Content Composer

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in cmsmasters CMSMasters Content Composer cmsmasters-content-composer allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects CMSMasters Content Composer: from n/a through <= 2.5.8.

Affected products

• Cmsmasters Cmsmasters Content Composer: up to and including 2.5.8

Published 2026-02-19. Last modified 2026-06-17.