What the vulnerability does
01Description
Authorization Bypass Through User-Controlled Key vulnerability in Mikado-Themes Fleur fleur allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Fleur: from n/a through <= 2.0.
Explanation of Vulnerability in Simple Terms
02Summary
Fleur versions 2.0 and earlier contain a vulnerability allowing authenticated users to modify data or disrupt service. An attacker with low-level account access can alter content or cause the application to become unavailable. The vulnerability requires network access and an existing user account but no additional user interaction.
What an attacker can do
03Attacker Capabilities
Modify site data or cause temporary unavailability of the application.
Potential impact on your site
04Site Impact
Authenticated users can alter content or degrade site performance without authorization.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site.
Key dates
06Disclosure timeline
January 22, 2026
CVE published
April 28, 2026
Record updated