What the vulnerability does
01Description
The Advanced Database Cleaner plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.3 via deserialization of untrusted input in the 'process_bulk_action' function. This makes it possible for authenticated attacker, with administrator access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
Explanation of Vulnerability in Simple Terms
02Summary
Advanced Database Cleaner versions up to 3.1.3 contain a deserialization flaw that allows high-privileged users to execute arbitrary code on the site. An attacker with admin or equivalent access can craft malicious serialized data to trigger code execution during database operations. This affects site confidentiality, integrity, and availability.
What an attacker can do
03Attacker Capabilities
Run arbitrary code on the site with admin-level privileges.
Potential impact on your site
04Site Impact
A compromised admin account can fully compromise the site, including data theft, malware injection, and site takeover.
Conditions required to exploit
05Prerequisites
Attacker must have high-level admin or equivalent privileges on the WordPress site.
Key dates
06Disclosure timeline
February 5, 2024
CVE published
April 8, 2026
Record updated
