CVE-2024-34372 in Post Grid Master Plugin
Summary
by MITRE • 05/06/2024
Missing Authorization vulnerability in AddonMaster Post Grid Master.This issue affects Post Grid Master: from n/a through 3.4.7.
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Analysis
by VulDB Data Team • 06/09/2025
The CVE-2024-34372 vulnerability represents a critical authorization flaw within the AddonMaster Post Grid Master plugin, specifically impacting versions ranging from an unspecified initial version through 3.4.7. This missing authorization issue fundamentally undermines the security model of the affected WordPress plugin, creating a pathway for unauthorized access to administrative functionalities. The vulnerability stems from inadequate validation of user permissions during critical operations, allowing malicious actors to bypass standard authentication checks and execute privileged actions without proper authorization.
This technical weakness falls under the CWE-863 category of "Incorrect Authorization" which is classified as a fundamental security flaw in software systems. The vulnerability operates by failing to verify whether the requesting user possesses the necessary privileges to perform specific administrative tasks within the plugin's interface. Attackers can exploit this gap to manipulate the plugin's core functionalities, potentially gaining access to sensitive data, modifying content, or altering plugin configurations without proper authentication. The impact is particularly severe given that WordPress plugins often serve as critical components in content management systems where administrative access can lead to complete system compromise.
The operational consequences of this vulnerability extend beyond simple unauthorized access, creating potential attack vectors for broader security breaches within WordPress environments. When an attacker successfully exploits this missing authorization check, they can leverage the plugin's administrative capabilities to perform actions such as modifying post grid configurations, accessing restricted plugin settings, or potentially injecting malicious code into the system. This flaw directly aligns with ATT&CK technique T1078.004 which focuses on valid accounts and credential access, as the vulnerability allows unauthorized users to operate under administrative privileges. The vulnerability's persistence across multiple versions indicates a systemic design flaw that requires immediate attention from both plugin developers and security administrators.
Mitigation strategies for this vulnerability must include immediate patching of the affected plugin to version 3.4.8 or later, which should contain the necessary authorization checks and validation mechanisms. Security administrators should implement additional monitoring of plugin-related activities and access logs to detect potential exploitation attempts. Network-level controls such as firewall rules and web application firewalls can provide additional defense-in-depth measures to detect and block suspicious API calls or administrative operations. Regular security audits of installed WordPress plugins should be conducted to identify similar authorization flaws, and automated vulnerability scanning tools should be employed to continuously monitor for such issues. The incident underscores the importance of proper input validation and authorization checking in plugin development, as outlined in the OWASP Top Ten security principles and the WordPress Plugin Security Guidelines. Organizations should also consider implementing role-based access controls and principle of least privilege models to minimize the potential impact of similar authorization failures in their WordPress environments.