What the vulnerability does
01Description
The UserPro plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 5.1.0. This is due to missing or incorrect nonce validation on the 'import_settings' function. This makes it possible for unauthenticated attackers to exploit PHP Object Injection due to the use of unserialize() on the user supplied parameter 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
The UserPro WordPress plugin through version 5.1.0 contains a cross-site request forgery (CSRF) vulnerability. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unauthorized actions on the site without the admin's knowledge or consent. This can lead to account compromise, data modification, or site configuration changes.
What an attacker can do
03Attacker Capabilities
Perform unauthorized actions on the site by tricking an admin into visiting a malicious webpage.
Potential impact on your site
04Site Impact
Attackers can modify site settings, user accounts, or content if an admin visits a malicious link while logged in.
Conditions required to exploit
05Prerequisites
Admin must be logged in and visit a page controlled by the attacker.
Key dates
06Disclosure timeline
November 22, 2023
CVE published
April 8, 2026
Record updated
