# injection

> Claude/Codex skill by [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars · Updated 2026-07-31

Detects SQL, command, and template injection caused by user input reaching an interpreter without parameterization. Use when writing code that constructs database queries, builds SQL strings, executes shell commands, processes templates with user input, evaluates code dynamically, or passes user- controlled data to any external interpreter.

Tags: llms, security, skills

## Install

```sh
git clone https://github.com/thejefflarson/soundcheck /tmp/soundcheck && ln -s /tmp/soundcheck/.claude/skills/injection ~/.claude/skills/injection
```

## From README

Injection Security Check (A05:2025) What this checks Protects against SQL, command, and template injection caused by passing user-controlled data to an interpreter without sanitization. Exploitation leads to full database read/write, remote code execution, and data exfiltration. For NoSQL-specific injection (MongoDB operator injection, $where), see nosql-injection.

## Links

- HTML page: https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/injection/
- GitHub: https://github.com/thejefflarson/soundcheck
- Author: [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md)

## More from this repo

- [authentication-failures](https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/authentication-failures/index.md) — Detects weak password storage, flawed JWT validation, sessions surviving logout, and missing MFA in authentication code.
   - [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars
- [broken-access-control](https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/broken-access-control/index.md) — Detects missing ownership checks, broken role enforcement, and IDOR vulnerabilities that let users access other users'...
   - [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars
- [concurrency-correctness](https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/concurrency-correctness/index.md) — Detects multi-threaded code where a lock is held across a blocking operation, lock acquisition order risks deadlock,...
   - [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars