CVE-2026-4106: HT Mega Elementor Information Disclosure

CVE-2026-4106 Overview

CVE-2026-4106 is an information disclosure vulnerability affecting the HT Mega Addons for Elementor WordPress plugin. Versions prior to 3.0.7 contain an unauthenticated AJAX action that exposes personally identifiable information (PII) of customers who have placed orders within the last 7 days. The exposed data includes full names, city, state, and country information.

Critical Impact

Unauthenticated attackers can harvest customer PII from e-commerce sites using vulnerable versions of this plugin, potentially enabling targeted phishing campaigns, identity theft, or further social engineering attacks.

Affected Products

• HT Mega Addons for Elementor WordPress plugin versions prior to 3.0.7
• WordPress sites with WooCommerce or similar e-commerce functionality using the vulnerable plugin
• Any WordPress installation running the affected plugin regardless of theme or other plugins

Discovery Timeline

• 2026-04-23 - CVE-2026-4106 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2026-4106

Vulnerability Analysis

This vulnerability falls under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The HT Mega Addons for Elementor plugin implements an AJAX endpoint that retrieves recent customer order information without requiring authentication. This design flaw allows any remote attacker to query the endpoint and receive PII data from orders placed in the preceding 7-day window.

The vulnerability is particularly concerning for e-commerce sites as it creates a continuous data leak where customer information becomes accessible to attackers for a week following each purchase. The network-accessible nature of the vulnerability means exploitation requires no special access to the WordPress installation—only knowledge of the vulnerable endpoint.

Root Cause

The root cause is improper access control on an AJAX action handler. The plugin registers an AJAX endpoint that processes requests without verifying user authentication or authorization. WordPress AJAX handlers can be registered to require authentication (wp_ajax_ prefix) or allow public access (wp_ajax_nopriv_ prefix), and this vulnerability stems from the endpoint being accessible without proper authentication checks.

Attack Vector

The attack is network-based and requires no authentication, user interaction, or special privileges. An attacker can craft HTTP requests to the vulnerable AJAX endpoint to retrieve customer data. Since WordPress exposes AJAX functionality through the wp-admin/admin-ajax.php file, attackers can enumerate or directly target the specific action parameter to trigger the vulnerable code path.

The vulnerability allows read-only access to customer PII including names and location data, but does not permit modification of data or impact system availability. The exposed information could be leveraged for secondary attacks such as targeted phishing or social engineering campaigns against the site's customers.

Detection Methods for CVE-2026-4106

Indicators of Compromise

• Unusual or high-volume requests to wp-admin/admin-ajax.php from unknown IP addresses
• AJAX requests containing the vulnerable action parameter from unauthenticated sessions
• Web server logs showing repeated queries to the AJAX endpoint with customer data responses
• Unexpected data exports or API calls retrieving order information

Detection Strategies

• Monitor web application firewall (WAF) logs for suspicious AJAX requests targeting customer data endpoints
• Implement rate limiting on admin-ajax.php to detect enumeration attempts
• Review WordPress plugin audit logs for unauthorized data access attempts
• Deploy file integrity monitoring to detect plugin version and ensure patched versions are installed

Monitoring Recommendations

• Enable detailed logging for WordPress AJAX handlers and review for anomalous patterns
• Configure alerts for bulk data retrieval patterns from the affected endpoint
• Monitor outbound traffic for potential data exfiltration following exploitation
• Regularly audit installed plugin versions against known vulnerable versions

How to Mitigate CVE-2026-4106

Immediate Actions Required

• Update HT Mega Addons for Elementor plugin to version 3.0.7 or later immediately
• Review web server access logs for evidence of exploitation prior to patching
• Consider temporarily disabling the plugin if immediate update is not possible
• Notify customers who placed orders in the past 7 days if exploitation is suspected

Patch Information

The vulnerability is resolved in HT Mega Addons for Elementor version 3.0.7. Site administrators should update through the WordPress plugin dashboard or download the latest version from the official WordPress plugin repository. For detailed vulnerability information, refer to the WPScan Vulnerability Report.

Workarounds

• Temporarily disable the HT Mega Addons for Elementor plugin until the update can be applied
• Implement WAF rules to block unauthenticated requests to the specific vulnerable AJAX action
• Restrict access to wp-admin/admin-ajax.php for unauthenticated users if business operations permit
• Use a security plugin to add additional authentication layers to AJAX endpoints

# WordPress CLI command to update the plugin
wp plugin update ht-mega-for-elementor --version=3.0.7

# Verify current plugin version
wp plugin list --name=ht-mega-for-elementor --fields=name,version,status