CVE-2026-39467 HIGH

CVE-2026-39467: WordPress Responsive Slider by MetaSlider plugin <= 3.106.0 - PHP Object Injection vulnerability

Vendor Metaslider
Product Responsive Slider by MetaSlider
Weakness CWE-502 · Unsafe deserialization
Published April 21, 2026
Last update May 19, 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 MetaSlider Responsive Slider by MetaSlider allows Object Injection.This issue affects Responsive Slider by MetaSlider: from n/a through 3.106.0.

Explanation of Vulnerability in Simple Terms

02Summary

Responsive Slider by MetaSlider versions up to 3.106.0 contain a deserialization vulnerability in how they process untrusted data. An authenticated administrator can craft malicious input that causes the plugin to deserialize and execute arbitrary code on the site. This requires high-level admin access but can lead to full site compromise.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the site with the privileges of the web server.

Potential impact on your site

04Site Impact

A compromised admin account can take over your entire site, steal data, or inject malware.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level access to the WordPress site.

Key dates

06Disclosure timeline

April 21, 2026 CVE published
May 19, 2026 Record updated

Related vulnerabilities

08Related CVE

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