Test web application email functionality for SMTP header injection vulnerabilities that allow attackers to inject additional email headers, modify recipients, and abuse contact forms for spam relay.
Installs into .claude/skills of the current project.
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[](https://www.skillsdirectory.com/skills/nexuslinkproductions-cyber-testing-for-email-header-injection)
---
name: cyber-testing-for-email-header-injection
description: "Test web application email functionality for SMTP header injection vulnerabilities that allow attackers to inject additional email headers, modify recipients, and abuse contact forms for spam relay."
hide: true
---
<!-- GENERATED:YURI-CODEX-SKILL-ADAPTER:v1 -->
# YURI skill adapter
Authoritative source: `.claude/skills/cyber-testing-for-email-header-injection/SKILL.md`
Authoritative source SHA-256: `a5be98535bec925c0ccc87f28c3a1070cf3d65be64f341224433afd19e5bf960`
Source class: `cyber-armed`
Before acting, read the authoritative source file above completely from beginning to end. If the governed source is absent, run `node _SYSTEM/Scripts/skill-recall.mjs --show cyber-testing-for-email-header-injection` and read its complete verified output. Follow that source as the skill body; this adapter is a non-authoritative metadata-and-pointer projection.
