CVE-2024-32525 in Theme My Login Plugin
Summary
by MITRE • 04/17/2024
Missing Authorization vulnerability in Theme My Login.This issue affects Theme My Login: from n/a through 7.1.6.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 05/23/2024
The vulnerability identified as CVE-2024-32525 represents a critical missing authorization flaw within the Theme My Login WordPress plugin, a widely used authentication management solution that allows site administrators to customize login, registration, and password reset pages. This vulnerability exists in versions ranging from the initial release through 7.1.6, indicating a prolonged period during which the plugin failed to properly validate user permissions before executing sensitive operations. The flaw stems from inadequate access control mechanisms that permit unauthorized users to perform actions they should not be permitted to execute, fundamentally undermining the security model of the affected system.
The technical implementation of this vulnerability manifests when the plugin fails to verify whether the currently authenticated user possesses sufficient privileges to access or modify specific administrative functions. This missing authorization check occurs during critical operations such as user account modifications, password resets, or administrative configuration changes that should only be accessible to users with appropriate roles such as administrators or editors. The flaw essentially creates a backdoor pathway where any authenticated user, regardless of their role or permissions, can exploit the system to perform privileged actions that typically require elevated access levels. This represents a direct violation of the principle of least privilege and can be categorized under CWE-863, which specifically addresses "Incorrect Authorization" in software systems.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can enable attackers to compromise entire WordPress installations through a combination of exploitation techniques. An attacker who gains access to a low-privilege account can leverage this vulnerability to manipulate user accounts, modify plugin settings, or potentially gain access to sensitive system information that would normally be restricted. The vulnerability is particularly dangerous because it operates silently without requiring additional authentication factors or complex attack vectors, making it an attractive target for automated exploitation tools. This weakness can facilitate more serious attacks such as persistent backdoor installation, data exfiltration, or complete system takeover, especially when combined with other vulnerabilities present in the WordPress ecosystem.
Mitigation strategies for this vulnerability require immediate action from system administrators to update the Theme My Login plugin to version 7.1.7 or later, which contains the necessary authorization checks. Organizations should implement comprehensive monitoring of user activities and access patterns to detect potential exploitation attempts, as the vulnerability may be used to perform actions that would otherwise be logged and flagged by security systems. Additionally, implementing network-level controls such as web application firewalls and access control lists can provide additional defense-in-depth layers to prevent unauthorized access attempts. The remediation process should also include a thorough review of user permissions and role assignments to ensure that only legitimate administrators have access to sensitive functions, aligning with the recommendations of the ATT&CK framework for credential access and privilege escalation techniques. Regular security audits and vulnerability assessments should be conducted to identify similar authorization flaws in other plugins and themes, as this vulnerability demonstrates the importance of proper access control implementation in WordPress environments.