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CVE-2026-15979 — The Content Egg – Affiliate Product Importer & Price Comparison plugin for WordPress is…

Key facts

CVE-2026-15979 is a High (8.1) vulnerability: The Content Egg – Affiliate Product Importer & Price Comparison plugin for WordPress is…. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-15979
Severity High (8.1)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-15979/

Details

English | 한국어

Description

The Content Egg – Affiliate Product Importer & Price Comparison plugin for WordPress is vulnerable to Arbitrary File Deletion via Path Traversal in versions up to and including 11.3.0. This is due to insufficient validation of the 'img_file' field within the cegg_data post metadata: the value passes only through wp_strip_all_tags() (which does not strip path traversal sequences), is stored directly in post meta, and is later concatenated without normalization into a filesystem path in getFullImgPath() before being passed to PHP's unlink(). This makes it possible for authenticated attackers, with author-level access and above, to delete arbitrary files on the affected site's server which may make remote code execution possible.

Vulnerability Details

Property Value
CVE ID CVE-2026-15979
Type RCE
CVSS Score 8.1

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-15979/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-2026-15979

# 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/content-egg/tags/11.2.0/application/admin/EggMetabox.php#L372
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.2.0/application/components/ContentManager.php#L161
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.2.0/application/components/ContentManager.php#L200
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.2.0/application/helpers/ImageHelper.php#L149
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.3.0/application/admin/EggMetabox.php#L372
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.3.0/application/components/ContentManager.php#L161
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.3.0/application/components/ContentManager.php#L200
  • https://plugins.trac.wordpress.org/browser/content-egg/tags/11.3.0/application/helpers/ImageHelper.php#L149
  • https://plugins.trac.wordpress.org/changeset?reponame=&new=3610612%40content-egg%2Ftrunk%2Fapplication%2Fhelpers%2FImageHelper.php&old=3514579%40content-egg%2Ftrunk%2Fapplication%2Fhelpers%2FImageHelper.php
  • https://www.wordfence.com/threat-intel/vulnerabilities/id/bc1600b9-b590-47ca-b2d9-d521381da541?source=cve

Generated by PoC Generator on 2026-08-09T17:44:33.975683281

Frequently asked questions

What is CVE-2026-15979?

CVE-2026-15979 is a High (8.1) vulnerability: The Content Egg – Affiliate Product Importer & Price Comparison plugin for WordPress is…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-15979?

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-2026-15979?

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.