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perl-security

Harden Perl applications with taint mode, input validation, and parameterized DBI queries.

Updated Apr 4, 2026
Search Tags:#security#xss#input-validation#csrf#dbi#perl#taint-mode
One-click install
npx skills add https://github.com/mitul-bhatia/Vibes --skill perl-security-mitul-bhatia
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: perl-security
Source: https://github.com/mitul-bhatia/Vibes/tree/main/.github/skills/perl-security
Command: npx skills add https://github.com/mitul-bhatia/Vibes --skill perl-security-mitul-bhatia

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Perl security is often compromised by lax taint handling, unvalidated inputs, unsafe file and process operations, and SQL interpolation. This Skill provides a comprehensive set of guidelines and patterns to harden Perl code.

Core Features & Use Cases

  • Taint mode discipline and untainting patterns to prevent taint leaks.
  • Safe IO, process execution, and path handling to prevent command injection and TOCTOU issues.
  • Parameterized SQL queries using DBI and secure output encoding for web contexts.
  • Security tooling and best-practices such as perlcritic policies for static analysis.
  • Use Case: A Perl CGI app validates all user input, uses placeholders for SQL, and encodes HTML output to prevent XSS, CSRF, and session leakage.
  • Real-world example: A Mojolicious API securely handles user-provided data and avoids dangerous eval or backtick usage.

Quick Start

Run Perl security checks by applying taint-mode discipline, input validation, safe IO, and parameterized DBI queries across your Perl project.

Frequently Asked Questions about perl-security

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

FAQPage Schema
How do I untaint user input safely in Perl without compromising security?▼

Perl taint mode secures user input by marking external data as unsafe, requiring explicit untainting through strict allowlist validation patterns to prevent taint leaks and dangerous code execution.

What is the best way to prevent SQL injection in Perl DBI applications?▼

Preventing SQL injection in Perl DBI requires using parameterized queries with placeholders instead of direct variable interpolation, ensuring database interactions remain secure against malicious input manipulation.

How do I prevent XSS and CSRF vulnerabilities in a Mojolicious Perl application?▼

Preventing XSS and CSRF in Mojolicious involves applying secure output encoding for HTML contexts and implementing dedicated CSRF protection patterns to safely handle user-provided data across web requests.

Can I use perlcritic for static security analysis of Perl code?▼

Yes, perlcritic enforces static analysis by applying specific security policies to Perl codebases, identifying unsafe system interactions, dangerous eval usage, and input validation gaps during development.

How do I prevent command injection during file and process operations in Perl?▼

Preventing command injection in Perl requires safe IO operations, secure path handling, and avoiding dangerous backtick usage or eval, mitigating TOCTOU issues and unsafe system interactions.

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