CVE-2025-47683 HIGH

CVE-2025-47683: WordPress WP Maintenance plugin <= 6.1.9.7 - PHP Object Injection Vulnerability

Vendor Florent Maillefaud
Product WP Maintenance
Weakness CWE-502 · Unsafe deserialization
Published May 7, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Florent Maillefaud WP Maintenance wp-maintenance allows Object Injection.This issue affects WP Maintenance: from n/a through <= 6.1.9.7.

Explanation of Vulnerability in Simple Terms

02Summary

WP Maintenance versions 6.1.9.7 and earlier contain a deserialization vulnerability that allows high-privileged users to execute arbitrary code on the site. An attacker with administrator or equivalent access can craft malicious serialized data to trigger unintended PHP execution. This affects the plugin's core functionality and requires administrative credentials to exploit.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site with full site privileges.

Potential impact on your site

04Site Impact

A compromised admin account can fully compromise the site, including data theft, malware injection, and site takeover.

Conditions required to exploit

05Prerequisites

Attacker must have high-level site access (administrator role or equivalent).

Key dates

06Disclosure timeline

May 7, 2025 CVE published
April 28, 2026 Record updated