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missing-input-validation-anti-pattern

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Securely validate all external data.

Software Engineering#security#input validation#validation#secure coding#anti-pattern#cwe-20
Authorigbuend
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill addresses the critical security vulnerability of missing input validation, which is a foundational weakness that enables a wide range of attacks, including SQL Injection, XSS, and Command Injection.

Core Features & Use Cases

  • Detects Vulnerable Code: Identifies instances where user input, form data, API parameters, or external data are not properly validated on the server-side.
  • Promotes Secure Practices: Provides clear "BAD" (vulnerable) and "GOOD" (secure) code examples to illustrate how to implement robust server-side validation.
  • Use Case: When reviewing a web application's user registration form, this skill can help identify if the email address, username, and password fields are being validated for length, format, and allowed characters on the server before being processed, thus preventing common injection attacks.

Quick Start

Review the provided Python Flask code for any missing server-side input validation before processing user-submitted data.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: missing-input-validation-anti-pattern
Download link: https://github.com/igbuend/grimbard/archive/main.zip#missing-input-validation-anti-pattern

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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