CVE-2024-33932 in Login Logout Register Menu Plugin
Summary
by MITRE • 05/03/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Vinod Dalvi Login Logout Register Menu allows Stored XSS.This issue affects Login Logout Register Menu: from n/a through 2.0.
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Analysis
by VulDB Data Team • 04/01/2025
This vulnerability represents a critical cross-site scripting flaw that enables attackers to inject malicious scripts into web pages viewed by other users. The issue resides within the Login Logout Register Menu plugin developed by Vinod Dalvi, where user input is inadequately sanitized during the web page generation process. The vulnerability specifically allows for stored cross-site scripting attacks, meaning that malicious payloads can be permanently stored on the server and subsequently executed whenever affected pages are accessed by unsuspecting users. This classification aligns with CWE-79 which defines cross-site scripting as a common web application security flaw occurring when applications include untrusted data in web pages without proper validation or escaping mechanisms. The affected version range spans from an unknown starting point through version 2.0, indicating that all versions within this range are potentially vulnerable to this attack vector.
The technical implementation of this vulnerability stems from the plugin's failure to properly neutralize user-supplied input before incorporating it into dynamically generated web content. When users interact with the login, logout, or registration functionality, their input data flows through the application's processing pipeline without adequate sanitization measures. This allows attackers to inject malicious javascript code or other harmful payloads that persist in the system's database or storage mechanisms. The stored nature of this vulnerability means that once an attacker successfully injects malicious content, it remains active and executable for all subsequent users who encounter the affected web pages. This persistent threat significantly amplifies the potential impact compared to reflected XSS attacks which require specific user interactions to trigger.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking to encompass broader security compromise scenarios. An attacker could leverage this stored XSS vulnerability to steal user credentials, perform unauthorized actions on behalf of victims, manipulate application data, or redirect users to malicious websites. The vulnerability creates a persistent backdoor within the affected web application that can be exploited repeatedly without requiring additional user interaction beyond the initial injection. This makes it particularly dangerous for applications handling sensitive user information or those that rely on authentication mechanisms for access control. The attack surface is further expanded when considering that the vulnerability affects core user management functionality, potentially compromising the entire authentication system and user session management processes. Organizations using this plugin face significant risk of unauthorized access and data breaches, especially in environments where user registration and authentication are critical components of the application architecture.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms throughout the application's data processing pipeline. The primary defense involves sanitizing all user input before it is stored or rendered in web pages, utilizing proper HTML escaping techniques to prevent script execution. Organizations should immediately upgrade to the latest version of the Login Logout Register Menu plugin where this vulnerability has been addressed, while also implementing comprehensive security monitoring to detect potential exploitation attempts. Additionally, implementing content security policies and using web application firewalls can provide additional layers of protection against such attacks. Security teams should conduct thorough code reviews focusing on all input handling processes and ensure that proper validation frameworks are implemented across all user-facing application components. The remediation process should also include user education about the risks of submitting untrusted content and implementing principle of least privilege access controls to minimize potential damage from successful exploitation attempts.