What the vulnerability does
01Description
The WP Compress – Instant Performance & Speed Optimization plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 7.10.09. This is due to missing or incorrect nonce validation on the (top-level template code) function. This makes it possible for unauthenticated attackers to delete arbitrary WordPress options, including critical ones such as siteurl, home, active_plugins, template, and stylesheet, causing site outage or a full plugin and theme reset 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
WP Compress versions up to 7.10.09 are vulnerable to cross-site request forgery (CSRF) attacks. 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 admin to visit the attacker's page while authenticated to WordPress.
What an attacker can do
03Attacker Capabilities
Perform unauthorized 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 plugin settings or trigger unintended actions if an admin visits a malicious link while logged in.
Conditions required to exploit
05Prerequisites
Site admin must be logged into WordPress and visit an attacker-controlled webpage.
Key dates
06Disclosure timeline
August 16, 2026
CVE published
