What the vulnerability does
01Description
The MultiPurpose theme for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.2.0 via deserialization of untrusted input through the 'wpeden_post_meta' post meta. 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
MultiPurpose versions 1.2.0 and earlier contain a deserialization vulnerability that allows authenticated attackers to execute arbitrary code on the site. The flaw exists in how the product processes untrusted serialized data without proper validation. An attacker with low-level access can craft malicious input to trigger code execution with full site privileges.
What an attacker can do
03Attacker Capabilities
Run arbitrary code on the site with full administrative privileges.
Potential impact on your site
04Site Impact
Complete site compromise: attackers can steal data, modify content, create backdoors, or take the site offline.
Conditions required to exploit
05Prerequisites
Attacker must have a low-level user account or authenticated access to the application.
Key dates
06Disclosure timeline
August 8, 2024
CVE published
April 8, 2026
Record updated
