CVE-2026-27397: Really Simple Plugins B.v Really Simple Security Pro

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Authorization Bypass Through User-Controlled Key vulnerability in Really Simple Plugins B.V. Really Simple Security Pro allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Really Simple Security Pro: from n/a through 9.5.4.0.

Affected products

• Really Simple Plugins B.v Really Simple Security Pro: up to and including 9.5.4.0

Published 2026-03-19. Last modified 2026-06-17.