What the vulnerability does
01Description
The Image Optimizer by wps.sk plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.2.0. This is due to missing or incorrect nonce validation on the imagopby_ajax_optimize_gallery() function. This makes it possible for unauthenticated attackers to trigger bulk optimization via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
02Summary
Image Optimizer by wps.sk versions 1.2.0 and earlier are vulnerable to cross-site request forgery (CSRF). An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without the admin's knowledge or consent. The vulnerability requires the victim to visit the attacker's page while authenticated.
What an attacker can do
03Attacker Capabilities
Perform unwanted actions on the site by tricking an authenticated admin into visiting a malicious webpage.
Potential impact on your site
04Site Impact
An attacker can modify site settings or data through a logged-in admin's browser without the admin's awareness.
Conditions required to exploit
05Prerequisites
Site admin must be logged in and visit an attacker-controlled webpage.
Key dates
06Disclosure timeline
December 5, 2025
CVE published
April 8, 2026
Record updated