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XSS Vulnerability in Royal Elementor Addons | CVE202412120 | 2026-02-03


Plugin Name Royal Elementor Addons
Type of Vulnerability XSS
CVE Number CVE-2024-12120
Urgency Medium
CVE Publish Date 2026-02-03
Source URL CVE-2024-12120

Urgent Security Advisory — CVE-2024-12120: Authenticated Contributor Stored XSS in Royal Elementor Addons (≤ 1.7.1017) — Immediate Steps for WordPress Site Owners

Author: Managed-WP Security Team
Date: 2026-02-03
Tags: WordPress, Managed-WP, XSS, vulnerability, plugin security, Royal Elementor Addons, CVE-2024-12120

Executive Summary: A critical stored Cross-Site Scripting (XSS) vulnerability identified as CVE-2024-12120 has been reported in the Royal Elementor Addons & Templates plugin affecting versions 1.7.1017 and earlier. This flaw allows an authenticated user with Contributor privileges to inject malicious JavaScript that executes in the browsers of higher-privileged users or visitors, creating significant security exposure. This advisory details the technical risks, detection methods, actionable mitigation steps — including guidance on Managed-WP’s WAF virtual patching — to help WordPress administrators safeguard their environments immediately.


TL;DR — Key Points

  • Vulnerability: Stored Cross-Site Scripting (XSS)
  • CVE ID: CVE-2024-12120
  • Affected Plugin: Royal Elementor Addons & Templates (≤ 1.7.1017)
  • Fix Available: Version 1.7.1018 — update without delay
  • Required Privilege for Exploitation: Authenticated Contributor role (or higher)
  • Attack Method: Inject malicious scripts into plugin fields that execute when viewed by privileged users or site visitors
  • Severity Level: Medium (CVSS 6.5) — potential for session hijacking, privilege escalation, persistent content injection
  • Immediate Recommended Actions: Update plugin, restrict Contributor accounts, deploy Managed-WP WAF virtual patch, audit content for suspicious scripts

Why This Vulnerability Is Critical to Your WordPress Site Security

Stored XSS vulnerabilities represent a dangerous attack vector because malicious scripts are permanently saved in your website database and executed whenever a user views the compromised content. Exploitation of CVE-2024-12120 enables attackers to:

  • Hijack administrator sessions, leading to complete site takeover.
  • Execute unauthorized actions as privileged users — including altering settings, installing backdoors, or publishing malicious content.
  • Embed persistent malware or redirects that evade traditional file-scanning tools.
  • Establish enduring persistence mechanisms that operate across user sessions.
  • Combine with other weaknesses to deepen compromise or extract sensitive information.

Sites allowing Contributor-level users to submit content are especially vulnerable since this role is commonly assigned to guest authors or team members with limited editing rights.


Technical Breakdown: Understanding the Vulnerability

The core issue lies in inadequate input validation and output encoding within the plugin’s content fields. Specifically:

  1. Contributors can submit content or update plugin-specific fields (e.g., template descriptions, widget options) without proper sanitization.
  2. The plugin saves this unfiltered input directly into the database.
  3. When contributors or admins view pages or plugin interfaces rendering this content, the malicious script executes within their browser contexts due to missing output escaping.

This persistent injection enables harmful JavaScript to run repeatedly until the site is patched or the malicious content is sanitized.

Common coding oversights behind this flaw include:

  • Allowing raw HTML input without applying wp_kses(), escaping with esc_html(), or similar safeguards.
  • Outputting user data directly into the DOM or admin panels without adequate escaping.
  • AJAX endpoints that reflect unsanitized user input.
  • Custom template code that circumvents WordPress’s native security functions.

Who Needs to Assess Their Exposure?

  • websites running Royal Elementor Addons plugin version 1.7.1017 or earlier.
  • Multi-user WordPress setups where Contributor roles publish or update plugin-managed content.
  • Administrators and editors regularly interacting with the plugin’s content in the dashboard.
  • Managed WordPress hosting providers and security services who allow Contributor-level accounts without mitigation.

Critical Immediate Steps for WordPress Site Owners and Admins

  1. Apply the official update: Upgrade Royal Elementor Addons to version 1.7.1018 or later immediately—the only full remediation.
  2. If update cannot be applied right away:
    • Temporarily remove or disable all Contributor-level accounts.
    • Disable user registration if it is not essential to your workflow.
    • Consider disabling or temporarily removing the vulnerable plugin if the update is not feasible.
  3. Deploy a virtual patch: Use Managed-WP’s WAF with virtual patch rules targeting known exploit indicators to block malicious requests.
  4. Audit user submissions: Review recent Contributor-submitted content for suspicious script tags or event handlers by searching for <script, onerror=, javascript: patterns.
  5. Hardening measures: Enforce Two-Factor Authentication (2FA) on admin accounts and restrict wp-admin access by IP where applicable.
  6. Credential rotation: Reset admin and editor passwords as well as relevant API keys if signs of compromise are found.
  7. Scan for compromises: Run malware detection and review logs for suspicious activity.

How to Scan for Possible Exploitation

Execute SQL queries on a staging or backed-up copy of your database to detect malicious entries:

Check posts and metadata for script tags:

SELECT ID, post_title
FROM wp_posts
WHERE post_content LIKE '%<script%';

SELECT post_id, meta_key, meta_value
FROM wp_postmeta
WHERE meta_value LIKE '%<script%';

Check options and user meta data:

SELECT * FROM wp_options WHERE option_value LIKE '%<script%';
SELECT * FROM wp_usermeta WHERE meta_value LIKE '%<script%';

Search for event handlers and javascript URIs:

SELECT ID, post_title
FROM wp_posts
WHERE post_content REGEXP 'on(load|error|click|mouseover)='
   OR post_content LIKE '%javascript:%';

If suspicious payloads are discovered, export and sanitize or remove them before restoring live service.


Monitoring & Detection: What Logs to Review

  • Web server access logs for POST requests with suspicious script tags or event attributes targeting plugin endpoints.
  • PHP and application logs for errors or warnings related to unexpected inputs in plugin code.
  • Administrator activity logs for unusual login or page preview patterns.
  • Managed-WP WAF logs highlighting blocked or alerted requests matching scripted payloads.

Focus searches on POST requests to admin-ajax.php or plugin-specific URLs containing indicators like <script or onerror.


Sample Virtual Patch Rules for Managed-WP WAF

The following example rules illustrate how Managed-WP protects your site before patching the plugin:

  1. Block script tags in request URIs, headers, and bodies:
  2. # Block requests containing script tags in URI, headers or body
    SecRule REQUEST_URI|ARGS|REQUEST_BODY "@rx <\s*script" \
     "id:100001,phase:2,deny,status:403,msg:'Blocked XSS attempt - script tag',log,data:'%{MATCHED_VAR}'"
    
  3. Restrict admin-ajax.php requests with suspicious payloads:
  4. SecRule REQUEST_URI "@beginsWith /wp-admin/admin-ajax.php" \
     "chain,phase:2,deny,id:100002,msg:'Block stored XSS via AJAX' \
     SecRule ARGS_NAMES|ARGS|REQUEST_BODY "@rx (<\s*script|on(error|load|click)\s*=|javascript:)""
    
  5. Implement Content Security Policy to mitigate XSS impact in browsers:
  6. Content-Security-Policy: default-src 'self'; script-src 'self' 'sha256-...'; object-src 'none'; frame-ancestors 'none'
    
  7. Sanitize inputs server-side (example mu-plugin snippet):
  8. function managedwp_sanitize_royal_input() {
        if ( isset($_POST['royal_plugin_field']) ) {
            $allowed_tags = array(
                'a' => array('href' => array(), 'title' => array()),
                'br' => array(),
                'em' => array(),
                'strong' => array(),
                'p' => array()
            );
            $_POST['royal_plugin_field'] = wp_kses( $_POST['royal_plugin_field'], $allowed_tags );
        }
    }
    add_action( 'admin_post_save_royal_field', 'managedwp_sanitize_royal_input', 1 );
    

Best Practices for Long-Term Hardening

  1. Principle of Least Privilege: Limit Contributor capabilities to prevent submission of unsafe HTML or scripts.
  2. Stringent Input Sanitization: Enforce strong sanitization and escaping on all user input and output.
  3. Two-Factor Authentication: Require 2FA for all administrative and editorial accounts.
  4. Restrict Admin Access: Limit access to wp-admin by IP address or via VPN technologies.
  5. Safe Content Previewing: Adopt workflows to preview untrusted content outside of admin contexts.
  6. Comprehensive Monitoring: Implement detailed activity logs and alerts for abnormal user actions.
  7. Scheduled Updates: Maintain a disciplined patch management strategy for plugins and themes.
  8. Reliable Backups: Regularly back up site files and database with tested restore procedures.

Step-by-Step Incident Response Checklist If You Suspect Compromise

  1. Isolate the environment by restricting admin access and disabling the vulnerable plugin.
  2. Preserve all logs and suspicious data snapshots for forensic review.
  3. Rotate all relevant credentials: user passwords, API keys, tokens.
  4. Clean any malicious scripts found in content fields, posts, or metadata.
  5. Scan your site for persistent backdoors, new users, or malicious scheduled tasks.
  6. Restore from a clean backup if the compromise is extensive or not fully remediated.
  7. Apply the official plugin update to 1.7.1018 or later.
  8. Document the incident details and update internal security policies.

How Managed-WP Proactively Mitigates Vulnerabilities Like CVE-2024-12120

At Managed-WP, we provide enterprise-grade WordPress security with:

  • Immediate virtual patch deployment targeting specific vulnerabilities for managed customers.
  • Highly tuned WAF signatures minimizing false positives by focusing on plugin-specific paths and inputs.
  • Continuous monitoring and alerting on suspicious requests and anomalies.
  • In-depth remediation guidance, sandbox scanning, and incident response assistance.
  • Additional preventive layers such as Content Security Policies, rate limiting, and admin area safeguards.

Our managed approach bridges the critical time gap between vulnerability disclosure and application patching, ensuring your online presence stays secured without operational disruption.


Example Virtual Patching Workflow Managed-WP Applies

  1. Pinpoint plugin endpoints and parameters accepting user content (e.g., AJAX actions, form fields).
  2. Craft WAF rules focusing on these elements to block injection attempts before they hit WordPress.
  3. Implement recommended HTTP security headers to reduce browser exploit success.
  4. Test rules initially in monitoring mode, then switch to active blocking once verified.

Sample Managed-WP WAF Pseudo-Rule:

  • Match requests targeting plugin-specific paths or AJAX actions.
  • Detect payloads containing <script, event handler attributes (onerror=, onclick=), or javascript: schemes.
  • Block attack attempts and generate detailed logs for forensic review.

Developer Guidelines to Avoid Similar Vulnerabilities

  • Sanitize Input, Escape Output: Use WordPress functions like wp_kses() to filter HTML on input and esc_html(), esc_attr() for safe output rendering.
  • Role & Capability Checks: Ensure only trusted roles can submit content with HTML or scripts.
  • Avoid Direct Echoing: Never output user-submitted content without contextual escaping in any code path, including admin interfaces.
  • Secure AJAX Endpoints: Validate, sanitize, and escape all data handled via AJAX.
  • Implement Automated Tests: Use unit and integration tests that simulate injection payloads and verify correct neutralization.

Communication Template for Site Owner Notifications

Subject: Security Alert — Royal Elementor Addons Plugin Vulnerability (CVE-2024-12120) — Immediate Action Required

Message Body:

  • Issue Overview: Stored XSS vulnerability found in Royal Elementor Addons ≤ 1.7.1017 allowing contributors to inject malicious scripts.
  • Impact: Medium severity risk of session theft, content injection, and administrative account compromise.
  • Actions Taken:
    1. Plugin updated to 1.7.1018 on February 8, 2026.
    2. Temporary WAF rules applied to prevent exploits.
    3. Content and log reviews underway.
  • Recommended Immediately for Staff:
    • Avoid previewing content from untrusted contributors.
    • Admins must reset passwords and enable two-factor authentication.
    • Contributors should pause publishing until patched.
  • Contact: [Managed-WP Security Team contact info]

Testing and Validation Post-Remediation

  1. Re-run database scans for malicious content patterns to confirm cleanup.
  2. Verify Managed-WP WAF blocks simulated XSS payloads in a staging environment.
  3. Confirm that administrators and editors can perform tasks without disruption.
  4. Monitor application logs and firewall alerts for 30+ days to detect any bypass attempts.

FAQs

Q: Will disabling Contributor roles affect my content workflow?
A: Possibly. Consider alternative moderated workflows or temporarily disable frontend submissions to mitigate risk while patching.
Q: Can a WAF fix an already compromised WordPress site?
A: No. While a WAF blocks new exploitation attempts, it cannot remove existing backdoors or malicious content. Incident response and cleanup remain essential.
Q: Is searching for <script enough to find all malicious content?
A: It is a good starting point but insufficient alone. Additional pattern searches for event handlers, javascript URIs, and obfuscated payloads improve detection.

Building a Stronger Security Posture for the Future

  • Minimize privileged accounts to reduce attack surface.
  • Maintain a comprehensive plugin inventory and test updates in staging ahead of deployment.
  • Utilize managed security services like Managed-WP that offer virtual patching and rapid response.
  • Educate content contributors on safe content practices to avoid embedding unsafe HTML.
  • Schedule routine penetration testing focused on role-based abuse scenarios.

Get Started with Managed-WP’s Free Layered Protection Today

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  • Advanced firewall and Web Application Firewall (WAF) blocking suspicious payloads
  • Unlimited bandwidth protection to handle attack traffic
  • Malware scanning for database and file threats
  • Focused mitigations for OWASP Top 10 risks

Enroll in Managed-WP’s free protection plan to get immediate coverage and scale seamlessly to automated malware removal and virtual patching: https://managed-wp.com/pricing


Conclusion

The discovery of CVE-2024-12120 in Royal Elementor Addons underscores a common WordPress security challenge: broadly assigned contributor roles combined with insufficient input sanitization pave the way for dangerous persistent XSS attacks. The most vital defense is updating your plugin to version 1.7.1018 or later without delay.

If immediate updating is infeasible, employ layered compensations such as Contributor restrictions, Managed-WP WAF virtual patching, thorough content audits, and enforce strong administrative controls like 2FA and credential rotation.

Managed-WP is committed to protecting WordPress sites through rapid detection, expert remediation, and ongoing proactive defense. If you require assistance assessing your exposure or tuning your firewall rules for this threat, our security experts stand ready to help.

Stay vigilant, keep your plugins current, and practice least privilege principles to dramatically reduce your risk.

— Managed-WP Security Team


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