CVE-2025-66142 in Comparimager for Elementor Plugin
Summary
by MITRE • 01/22/2026
Missing Authorization vulnerability in merkulove Comparimager for Elementor comparimager-elementor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Comparimager for Elementor: from n/a through <= 1.0.1.
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Analysis
by VulDB Data Team • 01/24/2026
The CVE-2025-66142 vulnerability represents a critical missing authorization flaw within the merkulove Comparimager for Elementor plugin, specifically impacting versions ranging from the initial release through version 1.0.1. This security weakness stems from incorrectly configured access control security levels that permit unauthorized users to exploit functionality that should be restricted to privileged administrators. The vulnerability fundamentally undermines the plugin's ability to enforce proper access controls, creating a pathway for malicious actors to gain unauthorized access to sensitive features and data within the WordPress environment.
The technical implementation of this vulnerability manifests through improper validation of user permissions during plugin operations. When users interact with the Comparimager for Elementor functionality, the system fails to adequately verify whether the requesting user possesses the necessary administrative privileges to perform specific actions. This misconfiguration allows any authenticated user, regardless of their role or permission level, to access and manipulate comparison features that should be restricted to administrators or editors. The flaw exists in the plugin's core access control mechanisms, where authorization checks are either absent or improperly implemented, creating a persistent security gap that can be exploited across multiple attack vectors.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it enables potential attackers to manipulate image comparison functionalities and potentially access sensitive configuration data. An attacker could leverage this weakness to modify comparison settings, access restricted image processing features, or potentially gain insights into the underlying system architecture through the plugin's interaction with WordPress core components. The vulnerability's scope is particularly concerning within WordPress environments where multiple user roles exist, as it effectively neutralizes the role-based access control mechanisms that are fundamental to WordPress security architecture.
This vulnerability aligns with CWE-285, which addresses improper authorization issues in software systems, and demonstrates characteristics consistent with ATT&CK technique T1078 which focuses on valid accounts for persistence and privilege escalation. The misconfigured access control security levels create a persistent threat vector that can be exploited by both internal and external attackers, potentially leading to broader system compromise. Organizations utilizing the affected plugin version should immediately assess their current user permissions and implement additional monitoring measures to detect unauthorized access attempts. The vulnerability serves as a reminder of the critical importance of proper access control implementation in web applications and highlights the need for comprehensive security testing of plugin components within content management systems.
Mitigation strategies should include immediate plugin updates to versions that address the authorization flaw, along with comprehensive review of user permissions and role assignments within the WordPress environment. Administrators should implement additional monitoring and logging of plugin access attempts to detect potential exploitation attempts. The vulnerability underscores the necessity of regular security audits and proper input validation in plugin development practices, particularly for features that handle user data or system configuration changes. Organizations should also consider implementing network-level protections and access control lists to limit exposure while awaiting official security patches.