CVE-2026-11328 Overview
CVE-2026-11328 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the Exclusive Addons for Elementor plugin for WordPress. The flaw exists in all versions up to and including 2.7.9.8 and stems from insufficient input sanitization and output escaping on the post title parameter used by the plugin's post duplicator extension. Authenticated attackers with Contributor-level access or higher can inject arbitrary JavaScript that executes when any user views the affected page. The vulnerability is classified under [CWE-79] (Improper Neutralization of Input During Web Page Generation).
Critical Impact
Contributor-level accounts can persist JavaScript payloads that execute in the browser context of any visitor, including administrators, enabling session theft, account takeover, or drive-by redirection.
Affected Products
- Exclusive Addons for Elementor plugin for WordPress
- All versions up to and including 2.7.9.8
- WordPress sites where Contributor-or-higher accounts exist and the plugin is active
Discovery Timeline
- 2026-07-07 - CVE-2026-11328 published to NVD
- 2026-07-07 - Last updated in NVD database
Technical Details for CVE-2026-11328
Vulnerability Analysis
The vulnerability resides in the post duplicator extension shipped with the Exclusive Addons for Elementor plugin. The plugin accepts a post title value from an authenticated request but fails to sanitize the input before storage and fails to escape the value on output. As a result, script content submitted through the post title parameter is persisted to the database and rendered inline when the resulting page is accessed. Because payload execution happens in the context of the site's origin, an attacker can access cookies not flagged as HttpOnly, initiate authenticated actions on behalf of the viewing user, or pivot to further attacks against administrators. Relevant plugin source lines are documented in the WordPress Plugin Code Snippet at line 19 and line 34.
Root Cause
The plugin's post duplicator handler in extensions/post-duplicator.php passes the incoming post title into database write and output paths without invoking WordPress sanitization helpers such as sanitize_text_field() on input or esc_html()/esc_attr() on output. This missing neutralization is the direct cause of the stored XSS condition.
Attack Vector
An attacker authenticates to the target WordPress site using a Contributor-or-higher account. The attacker triggers the plugin's post duplication functionality and supplies a crafted post title containing a JavaScript payload. The payload is written to the posts table and executes whenever the injected page is rendered. Exploitation is remote, low-complexity, and requires no user interaction beyond a victim visiting the injected page. See the Wordfence Vulnerability Report for additional technical context.
Detection Methods for CVE-2026-11328
Indicators of Compromise
- Post titles or post_title database entries containing HTML tags such as <script>, <img onerror=, or <svg onload=.
- Unexpected outbound requests from visitors' browsers to attacker-controlled domains after loading pages generated by the plugin.
- New or duplicated posts created by Contributor-level accounts that were not previously active.
Detection Strategies
- Query the WordPress wp_posts table for post_title values matching regular expressions for HTML/JavaScript syntax.
- Review web server access logs for POST requests to the plugin's post duplicator endpoints originating from low-privilege user sessions.
- Deploy a Web Application Firewall (WAF) rule that inspects post title parameters for script tags and event-handler attributes.
Monitoring Recommendations
- Alert on WordPress audit events where Contributor accounts create or duplicate posts containing angle brackets in titles.
- Monitor administrator sessions for anomalous XHR/fetch activity that could indicate a triggered XSS payload.
- Track plugin version inventory across managed WordPress sites to identify hosts still running 2.7.9.8 or earlier.
How to Mitigate CVE-2026-11328
Immediate Actions Required
- Update the Exclusive Addons for Elementor plugin to a version later than 2.7.9.8 as soon as the vendor releases a fixed build.
- Audit existing posts for injected script content and remove or sanitize any malicious post_title values.
- Review Contributor-and-above user accounts, disabling any that are unnecessary or unrecognized.
Patch Information
At the time of NVD publication (2026-07-07), all versions up to and including 2.7.9.8 are affected. Administrators should consult the Wordfence Vulnerability Report and the plugin's WordPress.org changelog for the specific fixed release and apply the update through the WordPress plugin dashboard or via WP-CLI.
Workarounds
- Temporarily deactivate the Exclusive Addons for Elementor plugin until a patched version is installed.
- Restrict Contributor-and-above role assignments to trusted users only, and require multi-factor authentication for those accounts.
- Deploy a WAF policy that blocks HTML tags and JavaScript event handlers in post title parameters submitted to WordPress admin-ajax endpoints.
# Configuration example: update the plugin via WP-CLI once a fixed version is released
wp plugin update exclusive-addons-for-elementor
wp plugin list --name=exclusive-addons-for-elementor --fields=name,status,version
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
