CVE-2026-66438 Overview
CVE-2026-66438 is an unauthenticated sensitive data exposure vulnerability affecting the Exclusive Addons for Elementor WordPress plugin in versions up to and including 2.8.0. The flaw is classified under [CWE-497] (Exposure of Sensitive System Information to an Unauthorized Control Sphere) and is exploitable remotely over the network without authentication or user interaction.
An unauthenticated attacker can retrieve information that the plugin should keep restricted. The issue affects confidentiality only; integrity and availability are not directly impacted.
Critical Impact
Remote unauthenticated attackers can retrieve sensitive information exposed by the plugin on affected WordPress sites, aiding reconnaissance and follow-on attacks.
Affected Products
- Exclusive Addons for Elementor WordPress plugin, versions <= 2.8.0
- WordPress sites running the vulnerable plugin build
- Elementor-based websites relying on the affected extension
Discovery Timeline
- 2026-07-27 - CVE-2026-66438 published to NVD
- 2026-07-27 - Last updated in NVD database
Technical Details for CVE-2026-66438
Vulnerability Analysis
The vulnerability is a sensitive data exposure issue in the Exclusive Addons for Elementor plugin. According to the Patchstack Vulnerability Advisory, the plugin exposes sensitive information to unauthenticated requests. The attack vector is network-based with low complexity and no privileges required.
The scope is limited to confidentiality. An attacker cannot directly modify data or disrupt service using this flaw alone. However, exposed data can be chained with other weaknesses for broader compromise of a WordPress site.
Root Cause
The root cause maps to [CWE-497], where the plugin fails to enforce an authorization boundary around information that should not be publicly reachable. Endpoints or output paths within the plugin return sensitive content to callers without validating the requester's identity or capability.
Attack Vector
Exploitation requires only network reachability to the WordPress site running the vulnerable plugin. An attacker issues crafted HTTP requests to the plugin's exposed endpoints and reads back the sensitive response data. No credentials, tokens, or user interaction are needed.
No public proof-of-concept, exploit database entry, or known in-the-wild exploitation has been recorded for this CVE at the time of publication. Refer to the Patchstack Vulnerability Advisory for further technical details.
Detection Methods for CVE-2026-66438
Indicators of Compromise
- Unauthenticated HTTP requests to Exclusive Addons for Elementor endpoints returning non-public data
- Anomalous spikes in admin-ajax.php or REST API traffic referencing the exclusive-addons-for-elementor plugin namespace
- Requests from unfamiliar IPs enumerating plugin routes on WordPress sites
Detection Strategies
- Inventory WordPress installations and flag any deployment of Exclusive Addons for Elementor at version <= 2.8.0.
- Correlate web server access logs against known plugin request paths to identify unauthenticated data retrieval attempts.
- Alert on repeated 200-status responses to plugin endpoints originating from a single external source without an authenticated session cookie.
Monitoring Recommendations
- Enable verbose HTTP request logging on WordPress front-ends and forward logs to a centralized analytics platform.
- Monitor for outbound reconnaissance patterns targeting the plugin's REST or AJAX handlers.
- Track plugin version drift across managed WordPress sites and alert when vulnerable versions reappear.
How to Mitigate CVE-2026-66438
Immediate Actions Required
- Identify all WordPress sites running Exclusive Addons for Elementor at version 2.8.0 or earlier.
- Update the plugin to a fixed version once the vendor publishes a patched release per the Patchstack Vulnerability Advisory.
- Review recent web logs for unauthenticated requests to the plugin's endpoints and assess exposure.
Patch Information
Refer to the Patchstack Vulnerability Advisory for the current fixed version. Apply the vendor update through the WordPress plugin dashboard or via WP-CLI once a version above 2.8.0 is available.
Workarounds
- Deactivate the Exclusive Addons for Elementor plugin until a patched release can be installed.
- Restrict access to the affected plugin endpoints at the web application firewall (WAF) or reverse proxy layer.
- Enforce IP allow-listing for administrative and plugin-specific routes where feasible.
# Configuration example: disable the vulnerable plugin via WP-CLI
wp plugin deactivate exclusive-addons-for-elementor
wp plugin status exclusive-addons-for-elementor
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
