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perl-security

Enforce taint mode and input validation in Perl applications.

Updated May 9, 2026
Search Tags:#security#sql injection#xss#secure coding#perl#taint mode#perlcritic
One-click install
npx skills add https://github.com/kk20300113-png/my-claude-skills --skill perl-security-kk20300113-png
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: perl-security
Source: https://github.com/kk20300113-png/my-claude-skills/tree/main/perl-security
Command: npx skills add https://github.com/kk20300113-png/my-claude-skills --skill perl-security-kk20300113-png

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Perl applications are frequently targeted by security vulnerabilities such as injection attacks, path traversal, and unsafe process execution when handling untrusted user input, particularly in web and CGI contexts. Many developers underutilize Perl's built-in taint mode and secure coding patterns, leaving applications exposed to exploitable flaws.

Core Features & Use Cases

  • Comprehensive guidance for enabling and using Perl taint mode, including input validation and untainting patterns.
  • Best practices for preventing SQL injection (via DBI parameterized queries), XSS, CSRF, command injection, and ReDoS attacks.
  • Secure file operation and system process execution patterns, plus perlcritic security policy configuration for automated code reviews.
  • Use Case: Perl developers building web applications with Mojolicious, Dancer2, or Catalyst, or writing scripts that process user input, can use this skill to implement defense-in-depth security controls before deployment.

Quick Start

Use the perl-security skill to audit your Perl web script for taint mode compliance, injection vulnerabilities, and unsafe file or process operations.

Frequently Asked Questions about perl-security

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

FAQPage Schema
How do I prevent SQL injection in Perl DBI database interactions?▼

Prevent SQL injection in Perl DBI database interactions by enforcing taint mode and consistently using parameterized queries for all user input. This ensures untrusted data is treated strictly as values rather than executable code, mitigating injection risks.

How does Perl taint mode work for securing user input?▼

Perl taint mode secures user input by marking all external data as tainted and restricting its use in potentially dangerous operations. You must explicitly validate and untaint this input using secure regular expression patterns before it can affect file system or process execution workflows.

What is the best way to mitigate XSS in Mojolicious and Dancer2 web applications?▼

The best way to mitigate XSS in Mojolicious and Dancer2 web applications is to apply strict input validation, utilize framework-native output escaping mechanisms, and enforce secure operational patterns to sanitize untrusted data before rendering.

Does this security guidance apply to Perl CGI scripts processing untrusted data?▼

Yes, this security guidance applies to Perl CGI scripts processing untrusted data. It provides comprehensive patterns for enabling taint mode, preventing path traversal, and securing system command execution specifically within Perl web development and CGI contexts.

How do I configure perlcritic security policies for automated Perl code reviews?▼

Configure perlcritic security policies for automated Perl code reviews by applying the recommended security module rulesets that detect unsafe patterns. This enforces secure coding standards and automatically flags potential vulnerabilities like injection and unsafe execution during development.

How do I safely execute system commands in Perl without command injection vulnerabilities?▼

Safely execute system commands in Perl without command injection vulnerabilities by enabling taint mode, rigorously validating all user input, and using secure process execution patterns that separate executable logic from untrusted data arguments.

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