CVE-2026-22398 MEDIUM

CVE-2026-22398: WordPress Fleur theme <= 2.0 - Insecure Direct Object References (IDOR) vulnerability

Vendor Mikado-Themes
Product Fleur
Weakness CWE-639 · IDOR
Published January 22, 2026
Last update April 28, 2026

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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