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CVE-2026-85659 — The PilotPress plugin for WordPress is vulnerable to Privilege Escalation via Account…

Key facts

CVE-2026-85659 is a High (8.8) vulnerability: The PilotPress plugin for WordPress is vulnerable to Privilege Escalation via Account…. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-85659
Severity High (8.8)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-85659/

Details

English | 한국어

Description

The PilotPress plugin for WordPress is vulnerable to Privilege Escalation via Account Takeover in all versions up to, and including, 2.0.43. The vulnerability exists because the update_cc_details() AJAX handler forwards an attacker-supplied username parameter to ONTRAPORT via api_call('update_cc_details', ...) before performing the local username_exists() collision check, and aborts without rolling back the remote rename when a collision is detected — leaving the remote ONTRAPORT contact renamed to an existing WordPress Administrator's login. On a subsequent login attempt, user_login() (hooked to wp_authenticate) authenticates against ONTRAPORT using the renamed login and the attacker's own password, resolves the local WordPress user row via get_user_by('login', $username) — which now selects the real Administrator's row — and calls wp_set_password() against that Administrator's user ID; because the user_level != 10 guard only suppresses PilotPress's own cookie issuance rather than returning a WP_Error to core, WordPress proceeds to validate the newly-synchronized password and issues a full Administrator authentication cookie to the attacker. This makes it possible for authenticated attackers with Subscriber-level access and above — specifically any PilotPress member holding a valid ONTRAPORT contact and the Customer Center nonce — to fully take over an Administrator account.

Vulnerability Details

Property Value
CVE ID CVE-2026-85659
CVSS Score 8.8

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-85659/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-2026-85659

# 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/pilotpress/tags/2.0.39/pilotpress.php?rev=3642310#L1029
  • https://plugins.trac.wordpress.org/browser/pilotpress/tags/2.0.39/pilotpress.php?rev=3642310#L1099
  • https://plugins.trac.wordpress.org/browser/pilotpress/tags/2.0.39/pilotpress.php?rev=3642310#L1690
  • https://plugins.trac.wordpress.org/browser/pilotpress/tags/2.0.39/pilotpress.php?rev=3642310#L2380
  • https://plugins.trac.wordpress.org/changeset/3737004
  • https://www.wordfence.com/threat-intel/vulnerabilities/id/ceee48dd-72a7-49c3-90d5-7af1a30f9ecb?source=cve

Generated by PoC Generator on 2026-10-16T20:38:12.171949246

Frequently asked questions

What is CVE-2026-85659?

CVE-2026-85659 is a High (8.8) vulnerability: The PilotPress plugin for WordPress is vulnerable to Privilege Escalation via Account…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-85659?

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-2026-85659?

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.