CVE-2024-11436: WordPress Drag & Drop Builder XSS Vulnerability

CVE-2024-11436 Overview

CVE-2024-11436 is a Reflected Cross-Site Scripting (XSS) vulnerability [CWE-79] affecting the Drag & Drop Builder, Human Face Detector, Pre-built Templates, Spam Protection, User Email Notifications & more! plugin for WordPress. All versions up to and including 1.4.19 are affected. The flaw resides in the handling of the page parameter, which lacks sufficient input sanitization and output escaping. Unauthenticated attackers can inject arbitrary web scripts that execute when an authenticated user clicks a crafted link.

Critical Impact
Successful exploitation enables session hijacking, credential theft, and administrative action abuse in the context of the victim's browser session.

Affected Products

WordPress Drag & Drop Builder, Human Face Detector, Pre-built Templates, Spam Protection, User Email Notifications & more! plugin
All plugin versions up to and including 1.4.19
WordPress sites with the vulnerable plugin installed and active

Discovery Timeline

2024-12-07 - CVE-2024-11436 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-11436

Vulnerability Analysis

The vulnerability is a Reflected Cross-Site Scripting flaw in the plugin's administrative interface. The page parameter passed via HTTP GET request is echoed back into the rendered HTML response without proper sanitization or output encoding. An attacker crafts a URL containing malicious JavaScript in the page parameter and delivers it to a target user through phishing or social engineering. When the victim clicks the link while authenticated to WordPress, the payload executes in their browser under the site's origin.

Because the flaw requires user interaction and no authentication, attackers typically target site administrators to maximize impact. Executed scripts can steal session cookies, perform actions on behalf of the victim, or inject persistent backdoors through administrative functionality.

Root Cause

The root cause is insufficient input validation and missing output escaping on the page request parameter. The plugin fails to apply WordPress core escaping functions such as esc_attr() or esc_html() before reflecting the parameter value into HTML output. This allows attacker-controlled HTML and JavaScript to break out of the intended context and execute in the victim's browser.

Attack Vector

The attack requires network access and user interaction. An attacker constructs a URL pointing to the vulnerable WordPress admin page with a JavaScript payload embedded in the page parameter. The attacker delivers this URL through email, social media, or a compromised website. When an authenticated WordPress user visits the crafted URL, the injected script executes in their session context, enabling scope-crossing attacks that impact the parent WordPress application.

No working proof-of-concept code is available in the enriched data. Refer to the Wordfence Vulnerability Report for further technical details.

Detection Methods for CVE-2024-11436

Indicators of Compromise

HTTP requests to WordPress admin URLs containing suspicious characters in the page parameter such as <script>, javascript:, onerror=, or URL-encoded equivalents like %3Cscript%3E.
Unexpected outbound requests from administrator browsers to attacker-controlled domains following clicks on emailed links.
Creation of unauthorized administrator accounts or plugin installations shortly after an admin session began.

Detection Strategies

Deploy a Web Application Firewall (WAF) with signatures for reflected XSS patterns targeting WordPress query parameters.
Review WordPress access logs for GET requests to admin endpoints containing HTML tags or JavaScript event handlers in query strings.
Correlate suspicious admin URL access with subsequent privileged actions such as user creation or file uploads.

Monitoring Recommendations

Enable and centralize WordPress audit logs to capture administrative actions and their originating sessions.
Monitor referrer headers on WordPress admin pages for external sources that may indicate phishing-driven access.
Alert on installations of the affected plugin at versions 1.4.19 or earlier across managed WordPress inventories.

How to Mitigate CVE-2024-11436

Immediate Actions Required

Update the affected plugin to a version newer than 1.4.19 immediately across all WordPress installations.
Audit administrator accounts and recent privileged actions for unauthorized changes.
Communicate phishing awareness to WordPress administrators, emphasizing caution with unsolicited links.

Patch Information

The vendor addressed the vulnerability in the plugin release following version 1.4.19. Details of the code fix are available in the WordPress Change Log Entry. Site owners should apply the update through the WordPress plugin management interface or enable automatic plugin updates for the affected component.

Workarounds

Deactivate and remove the plugin until an update can be applied if immediate patching is not feasible.
Restrict access to WordPress admin URLs by IP address using web server or WAF rules.
Enforce Content Security Policy (CSP) headers to limit inline script execution and reduce XSS impact.

bash

# Example WP-CLI command to update the affected plugin
wp plugin update maxi-blocks --version=latest

# Example nginx rule to restrict wp-admin access by IP
location ^~ /wp-admin/ {
    allow 203.0.113.0/24;
    deny all;
}