CVE-2024-32792 in Hummingbird Plugin
Summary
by MITRE • 06/09/2024
Missing Authorization vulnerability in WPMU DEV - Your All-in-One WordPress Platform Hummingbird hummingbird-performance.This issue affects Hummingbird: from n/a through <= 3.7.3.
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Analysis
by VulDB Data Team • 04/02/2026
The vulnerability identified as CVE-2024-32792 represents a critical missing authorization flaw within the WPMU DEV Hummingbird performance plugin for WordPress platforms. This security gap manifests as an insufficient access control mechanism that allows unauthorized users to perform administrative actions typically restricted to authorized personnel. The vulnerability specifically impacts versions of the Hummingbird plugin ranging from the initial release through version 3.7.3, creating a window of exposure for numerous WordPress installations utilizing this platform. The flaw resides in the plugin's permission handling system where proper authentication checks fail to validate user privileges before executing sensitive operations.
The technical implementation of this vulnerability stems from inadequate input validation and privilege verification within the plugin's core functionality. When users interact with the performance monitoring and optimization features, the system does not properly verify whether the requesting user possesses the necessary administrative permissions to access or modify performance settings. This missing authorization check creates a path for low-privilege users or attackers to escalate their privileges and execute commands that should be restricted to administrators or users with appropriate access levels. The vulnerability aligns with CWE-285, which specifically addresses insufficient authorization within software systems, and represents a direct violation of the principle of least privilege that forms the foundation of secure system design.
From an operational standpoint, this vulnerability poses significant risks to WordPress site administrators and organizations relying on the Hummingbird plugin for performance optimization. An attacker exploiting this weakness could potentially access performance monitoring tools, modify optimization settings, or even gain deeper system access through the compromised plugin interface. The impact extends beyond simple unauthorized access as the performance plugin typically interacts with core WordPress functionality and server configurations. This creates opportunities for attackers to manipulate caching settings, modify performance metrics, or potentially use the plugin as a foothold for further attacks within the WordPress ecosystem. The vulnerability affects the integrity and availability of the WordPress platform, particularly when considering that performance plugins often have elevated privileges and direct access to system resources.
Organizations affected by this vulnerability should prioritize immediate remediation through patch updates to version 3.7.4 or later, which contains the necessary authorization fixes. The recommended mitigation strategy includes implementing network-level controls such as firewall rules that restrict access to plugin administration interfaces, particularly for non-privileged users. Additionally, administrators should conduct thorough access control reviews to ensure that only authorized personnel possess administrative privileges within the WordPress environment. Security monitoring should be enhanced to detect unusual access patterns to performance plugin interfaces, and regular security audits should verify proper implementation of authorization checks throughout the WordPress installation. This vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing defense-in-depth strategies that protect against privilege escalation attacks. The ATT&CK framework categorizes this issue under privilege escalation techniques where attackers exploit missing authorization controls to gain elevated system access, making it essential for security teams to address such vulnerabilities promptly through comprehensive patch management and access control policies.