CVE-2026-14378 — The DevKit Pro plugin for WordPress is vulnerable to Authentication Bypass Leading to…¶

Key facts

CVE-2026-14378 is a Critical (9.8) vulnerability: The DevKit Pro plugin for WordPress is vulnerable to Authentication Bypass Leading to…. This entry ships a detection-only PoC and a Docker test lab.


CVE	CVE-2026-14378
Severity	Critical (9.8)
Detection / prevention	—
PoC	poc.py
Source	2026/CVE-2026-14378/

Details¶

English | 한국어

Description¶

The DevKit Pro plugin for WordPress is vulnerable to Authentication Bypass Leading to Administrator Account Takeover in all versions up to, and including, 2.3.0 This is due to the revert_switch handler trusting the attacker-controlled original_user_id cookie as the privileged identity: verify_nonce_and_capability() incorrectly checks the manage_options capability on the user identified by the cookie rather than on the actual requester via current_user_can(), while the switch-back form and a valid session-bound nonce are emitted publicly via wp_footer to any visitor — including unauthenticated users — whenever that cookie is present. This makes it possible for unauthenticated attackers to set the original_user_id cookie to any administrator's user ID, collect the rendered nonce, and POST it back to the revert_switch handler, causing wp_set_auth_cookie() to be called with the administrator's ID and granting the attacker a full administrator-level authenticated session and complete site takeover.

Vulnerability Details¶

Property	Value
CVE ID	CVE-2026-14378
CVSS Score	9.8

Proof of Concept¶

Download¶

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-14378/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-2026-14378

# 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://docs.dplugins.com/devkit/changelog
https://www.wordfence.com/threat-intel/vulnerabilities/id/2ab3986a-69e0-442f-8e79-35b1bc5376d9?source=cve

Generated by PoC Generator on 2026-10-03T18:03:50.987168265

Frequently asked questions¶

What is CVE-2026-14378?¶

CVE-2026-14378 is a Critical (9.8) vulnerability: The DevKit Pro plugin for WordPress is vulnerable to Authentication Bypass Leading to…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-14378?¶

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-2026-14378?¶

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.