What the vulnerability does
01Description
The CDN Linker lite plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.3.1. This is due to missing or incorrect nonce validation on the ossdl_off_options() function. This makes it possible for unauthenticated attackers to update the plugin's settings — including the CDN URL used to rewrite all static asset references on the site — 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
CDN Linker lite versions 1.3.1 and earlier are vulnerable to cross-site request forgery (CSRF). An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without the administrator's knowledge or consent. The vulnerability requires the victim to visit the attacker's page while authenticated.
What an attacker can do
03Attacker Capabilities
Perform unwanted actions on the site by tricking an authenticated admin into visiting a malicious webpage.
Potential impact on your site
04Site Impact
An attacker can modify site settings or content if an admin visits a malicious link while logged in.
Conditions required to exploit
05Prerequisites
Site admin must be logged in and visit an attacker-controlled webpage.
Key dates
06Disclosure timeline
May 27, 2026
CVE published
May 27, 2026
Record updated
