CVE-2026-65552 CRITICAL

CVE-2026-65552: WordPress Export User Data plugin <= 2.2.6 - PHP Object Injection vulnerability

Vendor Qstudio
Product Export User Data
Weakness CWE-502 · Unsafe deserialization
Published August 6, 2026
Last update August 6, 2026

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

Subscriber PHP Object Injection in Export User Data <= 2.2.6 versions.

Explanation of Vulnerability in Simple Terms

02Summary

The Export User Data plugin for qstudio versions up to 2.2.6 deserializes untrusted data without validation, allowing an attacker to execute arbitrary PHP code on the site. No authentication or user interaction is required. This affects all installations of the plugin up to the stated version.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site and take complete control of it.

Potential impact on your site

04Site Impact

Complete compromise of the site, including data theft, malware injection, and loss of availability.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

August 6, 2026 CVE published
August 6, 2026 Record updated

Related vulnerabilities

08Related CVE