CVE-2025-69404 CRITICAL

CVE-2025-69404: WordPress Extreme Store theme <= 1.5.10 - PHP Object Injection vulnerability

Vendor Themerex
Product Extreme Store
Weakness CWE-502 · Unsafe deserialization
Published February 20, 2026
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in ThemeREX Extreme Store extremestore allows Object Injection.This issue affects Extreme Store: from n/a through <= 1.5.10.

Explanation of Vulnerability in Simple Terms

02Summary

Extreme Store versions up to 1.5.10 contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the server. The vulnerability exists in how the product processes untrusted serialized data without proper validation. An attacker can exploit this remotely without user interaction to gain full control of the affected site.

What an attacker can do

03Attacker Capabilities

Run their own code on the server, read/modify all site data, and take complete control of the site.

Potential impact on your site

04Site Impact

Complete compromise of the site and server; attacker can steal data, modify content, install malware, or use the server for further attacks.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

February 20, 2026 CVE published
April 28, 2026 Record updated