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deserialization-insecure

Identify and mitigate deserialization vulnerabilities in Java, PHP, and Python applications.

Updated Jun 11, 2026
Search Tags:#vulnerability#Java#exploitation#Python#PHP#deserialization
One-click install
npx skills add https://github.com/utsavthakur/agenticskills --skill deserialization-insecure-utsavthakur
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: deserialization-insecure
Source: https://github.com/utsavthakur/agenticskills/tree/main/deserialization-insecure
Command: npx skills add https://github.com/utsavthakur/agenticskills --skill deserialization-insecure-utsavthakur

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ysoserial, marshalsec, PHPGGC, pimpmykali/ysoserial-modified, GadgetInspector, Blacklist3r, SerializationDumper, jdeserialize, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides expert-level guidance on deserialization vulnerabilities across Java, PHP, and Python, offering a comprehensive playbook for identifying, exploiting, and mitigating these risks.

Core Features & Use Cases

  • In-depth Exploitation Techniques: Detailed analysis of deserialization attacks in Java, PHP, and Python, including gadget chains, traffic fingerprints, and tools usage.
  • Detection Fingerprinting: Identification of deserialization vulnerabilities through traffic analysis, content-type headers, and cookie/parameter names.
  • Mitigation Strategies: Recommendations for defense awareness and mitigation strategies for Java, PHP, and Python environments.

Quick Start

Load the deserialization-insecure skill to understand and mitigate deserialization vulnerabilities in your applications.

Frequently Asked Questions about deserialization-insecure

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I identify deserialization vulnerabilities in Java and PHP applications?▼

Detect deserialization vulnerabilities by analyzing traffic fingerprints, content-type headers, and cookie/parameter names. This Skill provides detection guidance for Java, PHP, and Python environments, including specific frameworks like Shiro and WebLogic.

What is the best way to select gadget chains for Java deserialization exploitation?▼

Select gadget chains by analyzing Java deserialization mechanisms and frameworks like Commons Collections. This Skill guides gadget chain selection and tool usage for exploiting Java, PHP, and Python applications.

Can I use ysoserial and PHPGGC for Python deserialization attacks?▼

Ysoserial and PHPGGC target Java and PHP respectively, not Python. This Skill covers exploitation techniques and tool usage across all three languages, focusing on gadget chains and framework vulnerabilities.

How do I mitigate deserialization risks in WebLogic and Shiro frameworks?▼

Mitigate deserialization risks in WebLogic and Shiro by applying defense strategies tailored to Java environments. This Skill provides recommendations for defending against deserialization attacks across Java, PHP, and Python.

Does this Skill cover ASP.NET deserialization vulnerabilities?▼

Yes, this Skill covers ASP.NET deserialization vulnerabilities alongside Java, PHP, and Python. It focuses on gadget chain selection, traffic fingerprinting, and specific framework vulnerabilities including ASP.NET.

What tools do I need to analyze Java deserialization payloads?▼

Analyze Java deserialization payloads using tools like ysoserial, marshalsec, SerializationDumper, and jdeserialize. This Skill provides guidance on using these tools for gadget chain selection and vulnerability exploitation.

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