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CVE-2023-7306: Unauthenticated Deletion Vulnerability in Frontend File Manager Plugin for WordPress

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Overview

The Frontend File Manager Plugin for WordPress, a widely used platform for website creation and management, suffers from a serious vulnerability, identified as CVE-2023-7306. This vulnerability allows unauthenticated attackers to delete arbitrary posts, posing a significant threat to data integrity and potentially leading to unauthorized information disclosure. The vulnerability affects all versions up to, and including, 21.5.

Vulnerability Summary

CVE ID: CVE-2023-7306
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Unauthorized loss of data, potential system compromise or data leakage

Affected Products

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Product | Affected Versions

Frontend File Manager Plugin for WordPress | All versions up to, and including, 21.5

How the Exploit Works

The CVE-2023-7306 vulnerability lies in the wpfm_delete_multiple_files() function of the Frontend File Manager Plugin, which does not perform an appropriate capability check. This oversight allows unauthenticated users to send requests to this function, leading to the deletion of arbitrary posts without any necessary permissions or authentication.

Conceptual Example Code

Here’s a conceptual example of how an attacker might exploit this vulnerability:

POST /wp-admin/admin-ajax.php?action=wpfm_delete_multiple_files HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "file_ids": ["1", "2", "3"] }

In this example, an unauthenticated attacker sends a POST request to the wpfm_delete_multiple_files function, specifying the IDs of the files they wish to delete. Without an appropriate capability check in place, the function processes the request and deletes the specified files.

Mitigation Guidance

To mitigate this vulnerability, affected users are recommended to apply the vendor patch as soon as it is available. In the meantime, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation measure, helping to detect and block malicious requests.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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