CVE-2026-23547 HIGH

CVE-2026-23547: WordPress CMSMasters Content Composer plugin <= 2.5.8 - Broken Access Control vulnerability

Vendor Cmsmasters
Product CMSMasters Content Composer
Weakness CWE-862 · Missing authorization
Published February 19, 2026
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

CMSMasters Content Composer versions up to 2.5.8 lack proper authorization checks, allowing authenticated users with low privileges to read sensitive data and make limited modifications. An attacker with a basic user account can access information and perform actions they should not be permitted to. The vulnerability requires a valid login but no special interaction from the victim.

What an attacker can do

03Attacker Capabilities

Read sensitive data and make limited changes to the site using only a basic user account.

Potential impact on your site

04Site Impact

Any registered user can access confidential information and modify content beyond their intended permissions.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site; no victim interaction required.

Key dates

06Disclosure timeline

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