What the vulnerability does
01Description
The PGS Core plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.8.0 via deserialization of untrusted input in the 'import_header' function. This makes it possible for unauthenticated attackers 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
PGS Core versions up to 5.8.0 contain a deserialization vulnerability that allows unauthenticated attackers to run arbitrary code on the server. The flaw exists in how the product processes untrusted serialized data without proper validation. No user interaction is required; an attacker can exploit this remotely over the network.
What an attacker can do
03Attacker Capabilities
Run arbitrary code on the server, read sensitive files, modify data, or take the site offline.
Potential impact on your site
04Site Impact
Complete compromise of the server and all data hosted on it if PGS Core is in use.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
May 6, 2025
CVE published
April 8, 2026
Record updated
