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CVE-2026-15001 — The bLoyal: Loyalty & Promotions by bLoyal plugin for WordPress is vulnerable to…

Key facts

CVE-2026-15001 is a High (8.8) vulnerability: The bLoyal: Loyalty & Promotions by bLoyal plugin for WordPress is vulnerable to…. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-15001
Severity High (8.8)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-15001/

Details

English | 한국어

Description

The bLoyal: Loyalty & Promotions by bLoyal plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.1.611.78. This is due to the AJAX actions save_bloyal_configuration_data and save_bloyal_accesskeyverification_data being registered without any capability or nonce checks, and the bloyal_customer_auto_login function unconditionally trusting the Customer.ExternalId value returned by whichever API URL is stored in the plugin's options. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's bLoyal Loyalty Engine API URL (bloyal_custom_loyaltyengine_api_url) and the is_bloyal_custom_api_url flag via the unprotected AJAX actions, then trigger the unauthenticated /cart REST route to cause bloyal_customer_auto_login to fetch customer data from an attacker-controlled endpoint and call wp_set_auth_cookie() with an attacker-supplied Customer.ExternalId, thereby authenticating as any WordPress user including the site Administrator.

Vulnerability Details

Property Value
CVE ID CVE-2026-15001
CVSS Score 8.8

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-15001/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-2026-15001

# 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/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L2429
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L2470
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L2512
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L421
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L494
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L806
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/bloyal.php#L1196
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/bloyal.php#L1553
  • https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/bloyal.php#L1596
  • https://www.wordfence.com/threat-intel/vulnerabilities/id/ba4b58ad-97b3-482a-bf24-1fa85d6ef93d?source=cve

Generated by PoC Generator on 2026-08-15T20:05:06.949185425

Frequently asked questions

What is CVE-2026-15001?

CVE-2026-15001 is a High (8.8) vulnerability: The bLoyal: Loyalty & Promotions by bLoyal plugin for WordPress is vulnerable to…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-15001?

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-2026-15001?

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.