byyaklang· 59 skills
Email header injection and spoofing playbook. Use when testing contact forms, email APIs, password reset flows, or any feature that constructs SMTP messages with user-controlled fields. Covers CRLF injection in headers, SPF/DKIM/DMARC bypass, and phishing amplification.
$npx -y skills add yaklang/hack-skills --skill email-header-injectionInstalls into the current project.
Run `npx skills use "https://github.com/yaklang/hack-skills" --skill "yaklang/hack-skills/email-header-injection"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/yaklang/hack-skills" that are relevant to the current task. Run `npx skills add "https://github.com/yaklang/hack-skills"` and select the relevant skills, then follow their instructions.