What the vulnerability does
01Description
The CM Ad Changer – A simple tool to control and optimize your site's banners plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.7. This is due to missing or incorrect nonce validation on the cmac_campaigns_action function. This makes it possible for unauthenticated attackers to permanently delete arbitrary advertising campaigns, including their associated banner records and uploaded files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
02Summary
CM Ad Changer versions 2.0.7 and earlier are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the ad management system without the admin's knowledge or consent. The vulnerability requires the victim to visit the attacker's page while authenticated to the WordPress site.
What an attacker can do
03Attacker Capabilities
Perform unauthorized actions on the ad management system by tricking an authenticated admin into visiting a malicious webpage.
Potential impact on your site
04Site Impact
Attackers can modify, delete, or create advertisements without authorization if an admin visits a compromised page while logged in.
Conditions required to exploit
05Prerequisites
Site administrator must be logged in and visit an attacker-controlled webpage; no special privileges or direct site access required.
Key dates
06Disclosure timeline
May 27, 2026
CVE published
May 27, 2026
Record updated
