CVE-2026-27397 MEDIUM

CVE-2026-27397: WordPress Really Simple Security Pro plugin <= 9.5.4.0 - Insecure Direct Object References (IDOR) vulnerability

Vendor Really Simple Plugins B.v.
Product Really Simple Security Pro
Weakness CWE-639 · IDOR
Published March 19, 2026
Last update April 28, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

Description

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.

Key dates

Disclosure timeline

March 19, 2026 CVE published
April 28, 2026 Record updated