Hash Form Drag & Drop Form Builder plugin for WordPress is a widely used tool for creating customizable forms on WordPress websites. It is utilized by website administrators and developers to enable drag-and-drop form creation without needing extensive coding knowledge. This plugin is popular due to its ease of use and flexibility. However, it is critical that users keep it updated to avoid potential vulnerabilities. The plugin is used across various industries for managing form submissions and user interactions on WordPress sites.
The Hash Form Drag & Drop Form Builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'file_upload_action' function in all versions up to, and including, 1.1.0. This allows unauthenticated attackers to upload arbitrary files to the server. Exploiting this vulnerability could lead to remote code execution. The issue is critical and needs immediate attention to mitigate risks.
The vulnerability lies in the 'file_upload_action' function of the Hash Form Drag & Drop Form Builder plugin, where there is a lack of proper file type validation. Attackers can exploit this by sending a specially crafted request to the server, allowing them to upload arbitrary files. This includes malicious scripts that could be executed on the server, potentially leading to full control over the affected website. The vulnerable endpoint is 'admin-ajax.php?action=hashform_file_upload_action' and the 'qqfile' parameter is the one being exploited.
If exploited, this vulnerability could allow attackers to upload and execute malicious files on the server, potentially leading to remote code execution. This could result in complete control over the affected WordPress site, data theft, defacement, and the use of the server for malicious activities such as distributing malware. The integrity, confidentiality, and availability of the website and its data could be severely compromised.
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References:
- https://nvd.nist.gov/vuln/detail/CVE-2024-5084
- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/hash-form/hash-form-drag-drop-form-builder-110-unauthenticated-arbitrary-file-upload-to-remote-code-execution
- https://github.com/WOOOOONG/CVE-2024-5084/blob/main/CVE-2024-5084_exploit.py
- Update the Hash Form Drag & Drop Form Builder plugin to version 1.1.1 or higher.
- Implement strict file type validation on all file upload functionalities.
- Regularly monitor and audit your website for unusual file uploads and activities.
- Employ a Web Application Firewall (WAF) to block malicious file upload attempts.
- Ensure proper permissions are set on upload directories to restrict executable files.
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