What the vulnerability does
01Description
The Buyent Classified plugin for WordPress (bundled with Buyent theme) is vulnerable to privilege escalation via user registration in all versions up to, and including, 1.0.7. This is due to the plugin not validating or restricting the user role during registration via the REST API endpoint. This makes it possible for unauthenticated attackers to register accounts with arbitrary roles, including administrator, by manipulating the _buyent_classified_user_type parameter during the registration process, granting them complete control over the WordPress site.
Explanation of Vulnerability in Simple Terms
02Summary
Buyent versions 1.0.7 and earlier contain a privilege management flaw that allows unauthenticated attackers to gain full control over the application. The vulnerability requires no user interaction and can be exploited remotely over the network. An attacker can read sensitive data, modify site content, and disrupt service availability.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify content, and disable the site without authentication.
Potential impact on your site
04Site Impact
Complete compromise of the Buyent installation and any data it stores or manages.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
February 19, 2026
CVE published
April 8, 2026
Record updated
