CVE-2023-44472 in Unyson Plugin
Summary
by MITRE • 05/03/2024
Missing Authorization vulnerability in ThemeFuse Unyson.This issue affects Unyson: from n/a through 2.7.28.
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Analysis
by VulDB Data Team • 03/20/2025
The CVE-2023-44472 vulnerability represents a critical missing authorization flaw within the ThemeFuse Unyson WordPress plugin ecosystem, specifically impacting versions ranging from unspecified initial releases through 2.7.28. This vulnerability falls under the category of insufficient authorization checks, which directly violates fundamental security principles governing access control mechanisms. The flaw exists in the plugin's core functionality where proper authentication and authorization checks are either absent or improperly implemented, creating a pathway for unauthorized entities to exploit the system. The vulnerability demonstrates a classic weakness in the principle of least privilege, where users without proper credentials can potentially access restricted administrative functions or data within the plugin's framework.
The technical implementation of this authorization bypass stems from inadequate validation of user permissions within the Unyson plugin's administrative interfaces and API endpoints. Attackers can exploit this weakness to perform actions that should be restricted to authorized administrators or specific user roles, potentially leading to complete system compromise. The vulnerability's impact extends beyond simple unauthorized access, as it can enable attackers to manipulate plugin settings, modify content, or even execute arbitrary code depending on the broader system architecture. This flaw operates at the application layer and can be particularly dangerous when combined with other vulnerabilities, as it provides the necessary access to escalate privileges and conduct more sophisticated attacks. The issue aligns with CWE-862 which specifically addresses "Missing Authorization" and represents a failure to properly enforce access control policies that should be fundamental to any secure web application.
From an operational standpoint, this vulnerability creates significant risk for WordPress sites utilizing the Unyson plugin, as it can enable attackers to gain unauthorized administrative access to the affected systems. The impact is particularly severe given that Unyson is a popular framework used by numerous themes and plugins, meaning that a single vulnerable instance can compromise multiple websites within the ecosystem. Attackers can leverage this vulnerability to modify plugin configurations, inject malicious code, or potentially establish persistent backdoors within the affected systems. The exploitability of this vulnerability is heightened by the fact that it affects multiple versions within the specified range, indicating that the issue has persisted across several releases, suggesting either inadequate security testing or delayed security response from the vendor. This creates a window of opportunity for attackers to target vulnerable installations without requiring complex exploitation techniques.
Organizations affected by this vulnerability should prioritize immediate remediation through plugin updates to version 2.7.29 or later, which contains the necessary security patches to address the authorization bypass. The recommended mitigation strategy involves not only updating the vulnerable plugin but also implementing comprehensive monitoring for unauthorized access attempts and conducting thorough security audits of affected systems. Network segmentation and additional access controls should be implemented to limit the potential impact of successful exploitation attempts. Security teams should also consider deploying web application firewalls and intrusion detection systems to help identify and block exploitation attempts. The vulnerability underscores the importance of regular security assessments and maintaining up-to-date software components, as it demonstrates how a single authorization flaw can create cascading security risks throughout the entire WordPress ecosystem. This incident aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation, as the vulnerability essentially allows unauthorized access to privileged functions through improper authorization checks. Organizations should also implement proper security configuration management and regularly review plugin permissions to ensure that only authorized users can access sensitive administrative functions. The incident highlights the critical need for security-focused development practices and comprehensive testing procedures that include authorization and access control validation as fundamental components of the software development lifecycle.