CVE-2026-0674 MEDIUM

CVE-2026-0674: WordPress Campaign Monitor for WordPress plugin <= 2.9.1 - Broken Access Control vulnerability

Vendor Campaign Monitor
Product Campaign Monitor for WordPress
Weakness CWE-862 · Missing authorization
Published January 8, 2026
Last update May 11, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in Campaign Monitor Campaign Monitor for WordPress allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Campaign Monitor for WordPress: from n/a through 2.9.1.

Explanation of Vulnerability in Simple Terms

02Summary

The Campaign Monitor for WordPress plugin through version 2.9.1 lacks proper authorization checks, allowing authenticated users with low privileges to modify data they should not have access to. An attacker with a basic WordPress account can alter settings or content without the necessary permissions. Update to a version newer than 2.9.1 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Modify plugin settings or data without proper authorization.

Potential impact on your site

04Site Impact

Unauthorized users can alter Campaign Monitor settings or data, potentially disrupting email campaigns or exposing configuration.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege WordPress user account (e.g., subscriber or contributor).

Key dates

06Disclosure timeline

January 8, 2026 CVE published
May 11, 2026 Record updated