CVE-2026-24561

Vulnerability

Overview

The FluentBoards plugin for Boards (FluentBoards) WordPress plugin, in versions up to and including 1.91.1, contains a missing authorization vulnerability. This flaw stems from a broken access control issue, meaning the plugin does not properly verify that a user has the required privileges before allowing them to execute certain functions. The missing authorization check creates an attack vector where incorrect access control security levels can be exploited [1].

Exploitation

The vulnerability can be exploited by an unauthenticated or low-privileged attacker who is able to send crafted requests to the plugin's endpoints. The attack does not require any prior authentication or special privileges beyond what is already available to an attacker. As described in the advisory, this type of broken access control is often used in mass-exploit campaigns, where attackers target thousands of websites simultaneously, regardless of site size or popularity [1].

Impact

Successful exploitation allows an attacker to execute actions that are normally reserved for higher-privileged users, such as administrators. This could lead to unauthorized data modification, configuration changes, or other administrative-level operations, potentially compromising the integrity and security of the WordPress site [1].

Mitigation

The vulnerability has been addressed in version 1.9.1.2 of the FluentBoards plugin. Users are strongly advised to update to this version or later to remediate the issue. For those unable to update immediately, consulting with a hosting provider or web developer is recommended. The plugin vendor has released the patched version, and Patchstack users can enable auto-update for vulnerable plugins [1].