CVE-2024-32836 in WP-Lister Lite for eBay Plugin
Summary
by MITRE • 04/24/2024
Unrestricted Upload of File with Dangerous Type vulnerability in WP Lab WP-Lister Lite for eBay wp-lister-for-ebay.This issue affects WP-Lister Lite for eBay: from n/a through <= 3.5.11.
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Analysis
by VulDB Data Team • 04/02/2026
The vulnerability CVE-2024-32836 represents a critical unrestricted file upload flaw in the WP-Lister Lite for eBay plugin, specifically impacting versions through 3.5.11. This issue falls under the category of CWE-434 which defines insecure file upload handling, where the application fails to properly validate file types before accepting uploads. The vulnerability exists within the plugin's file upload functionality, allowing attackers to bypass security measures that should restrict uploads to safe file types. The flaw enables malicious actors to upload files with dangerous extensions that could execute arbitrary code on the target system.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the plugin's upload handling mechanism. When users attempt to upload files through the WP-Lister Lite interface, the system does not properly verify the MIME type or file extension against a whitelist of approved formats. This allows attackers to upload files with extensions such as .php, .jsp, .asp, or other executable formats that could be executed within the web server context. The vulnerability is particularly concerning because it operates without proper authorization checks, meaning any authenticated user with access to the plugin's upload functionality could exploit this flaw.
The operational impact of CVE-2024-32836 is severe and multifaceted across the WordPress ecosystem. Successful exploitation could lead to complete compromise of the affected WordPress installation, allowing attackers to execute arbitrary code, install backdoors, or establish persistent access to the target environment. This vulnerability directly aligns with ATT&CK technique T1505.003 which covers "Download and Execute" and T1078 which covers "Valid Accounts" as attackers could leverage this to maintain access. The impact extends beyond immediate code execution to include potential data exfiltration, privilege escalation, and the ability to use the compromised system as a launch point for further attacks within the network infrastructure.
Organizations using WP-Lister Lite for eBay plugin versions through 3.5.11 must implement immediate mitigations to address this vulnerability. The primary recommendation is to upgrade to the latest available version of the plugin where this issue has been patched. Additionally, administrators should implement strict file type validation at multiple levels including server-side restrictions, web application firewall rules, and directory permissions that prevent execution of uploaded files. Security measures should include implementing a whitelist of allowed file extensions, enforcing MIME type validation, and ensuring uploaded files are stored in directories that do not have execute permissions. Network segmentation and monitoring of file upload activities can provide additional layers of defense against exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and the potential consequences of inadequate security controls in web applications, particularly those handling user uploads in content management systems.