CVE-2026-22345 HIGH

CVE-2026-22345: WordPress Image Gallery – Lightbox Gallery, Responsive Photo Gallery, Masonry Gallery plugin <= 1.6.0 - PHP Object Injection vulnerability

Vendor A Wp Life
Product Image Gallery – Lightbox Gallery, Responsive Photo Gallery, Masonry Gallery
Weakness CWE-502 · Unsafe deserialization
Published February 20, 2026
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in A WP Life Image Gallery – Lightbox Gallery, Responsive Photo Gallery, Masonry Gallery new-image-gallery allows Object Injection.This issue affects Image Gallery – Lightbox Gallery, Responsive Photo Gallery, Masonry Gallery: from n/a through <= 1.6.0.

Explanation of Vulnerability in Simple Terms

02Summary

A deserialization vulnerability in Image Gallery – Lightbox Gallery allows authenticated users with low privileges to execute arbitrary code on the site. The plugin unsafely processes serialized data without proper validation, enabling attackers to instantiate malicious objects. This affects all versions up to 1.6.0.

What an attacker can do

03Attacker Capabilities

Run their own PHP code on the site and take full control of it.

Potential impact on your site

04Site Impact

Any low-privilege user account can compromise your entire site, steal data, and modify content.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account (e.g., subscriber or contributor role).

Key dates

06Disclosure timeline

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