What the vulnerability does
01Description
The Advanced Database Cleaner – Premium plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 4.1.0 via the 'template' parameter. This makes it possible for authenticated attackers, with Subscriber-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included.
Explanation of Vulnerability in Simple Terms
02Summary
Advanced Database Cleaner – Premium versions up to 4.1.0 contain a flaw that allows authenticated users with low privileges to read sensitive data, modify site content, or disrupt service. The vulnerability requires a valid user account but no additional user interaction. All three impact categories (confidentiality, integrity, availability) are affected at the highest level.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify site content, or disrupt service availability.
Potential impact on your site
04Site Impact
Any registered user can compromise data confidentiality, alter content, or cause downtime.
Conditions required to exploit
05Prerequisites
Attacker must have a valid low-privilege user account on the site.
Key dates
06Disclosure timeline
May 20, 2026
CVE published
May 20, 2026
Record updated
