Nmap flag injection via unsanitized target argument

[consigcody94]

Found via code audit. cli/recon/engine.go:42 - User target from os.Args[1] passed to nmap. Target like --script-args=... injects flags. Fix: Validate against ^[a-zA-Z0-9._-]+$

[thecnical]

### Hey , buddy thankyou for the issue report of the command injection vulnerability check out i fix that all issue know you use it and thank you one more time for your issue report