What the vulnerability does
01Description
The The Next theme for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.1.0 via deserialization of untrusted input from the wpeden_post_meta post meta value. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. 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
The Next versions up to 1.1.0 contain a deserialization vulnerability that allows authenticated users to execute arbitrary code on the server. An attacker with low-level access can craft malicious serialized data that, when processed by the application, runs their own code with full system privileges. This affects confidentiality, integrity, and availability of the entire application.
What an attacker can do
03Attacker Capabilities
Run arbitrary code on the server with full system access.
Potential impact on your site
04Site Impact
Complete compromise of the application and server; attackers can steal data, modify content, or take the site offline.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account with low-level privileges and network access to the application.
Key dates
06Disclosure timeline
August 8, 2024
CVE published
April 8, 2026
Record updated
