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CVE-2026-85410 — The Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup…

Key facts

CVE-2026-85410 is a High (8.1) vulnerability: The Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup…. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-85410
Severity High (8.1)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-85410/

Details

English | 한국어

Description

The Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.2.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify the title and metadata of arbitrary WordPress posts or permanently delete arbitrary WordPress posts by supplying an attacker-controlled popup_id. The required nonce is emitted on the edit-jltma_popup admin screen, which is accessible to Contributors because the jltma_popup custom post type is registered with capability_type='post'.

Vulnerability Details

Property Value
CVE ID CVE-2026-85410
CVSS Score 8.1

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-85410/poc.py

Usage

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start

# Clone and navigate to CVE directory
cd CVE-2026-85410

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints

Application URL Status
Vulnerable App http://localhost:8080 Shows vulnerability
Patched App http://localhost:8081 Demonstrates fix

Directory Structure

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References

  • https://plugins.trac.wordpress.org/browser/master-addons/trunk/inc/admin/popup-builder/class-popup-admin.php#L127
  • https://plugins.trac.wordpress.org/browser/master-addons/trunk/inc/admin/popup-builder/class-popup-admin.php#L188
  • https://plugins.trac.wordpress.org/browser/master-addons/trunk/inc/admin/popup-builder/class-popup-admin.php#L197
  • https://plugins.trac.wordpress.org/browser/master-addons/trunk/inc/admin/popup-builder/class-popup-admin.php#L267
  • https://plugins.trac.wordpress.org/changeset?reponame=&old=3689763%40master-addons&new=3689763%40master-addons
  • https://www.wordfence.com/threat-intel/vulnerabilities/id/dd1fc16c-f36b-4c39-916d-36833630729e?source=cve

Generated by PoC Generator on 2026-09-18T18:35:37.695104846

Frequently asked questions

What is CVE-2026-85410?

CVE-2026-85410 is a High (8.1) vulnerability: The Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-85410?

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2026-85410?

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

For authorized security testing and research only. See the full source and NVD record.