Have you discovered a new HmailServer vulnerability? Submit a responsible disclosure via the official HmailServer GitHub repository or contact the maintainers directly.
: Flaws that allow a standard user or an external actor to gain administrative rights over the email infrastructure. hmailserver exploit github
: The project has no active development. This means new vulnerabilities—like the SMTP Command Injection (CVE-2025-59419) impacting many mail systems—may not receive official patches for hMailServer. Recommendations Have you discovered a new HmailServer vulnerability
# Simplified from actual GitHub PoC payload = f"From: admin@local.com\nTo: victim@local.com\nSubject: exploit\n\n$( malicious_command )" smtp.sendmail(attacker_email, victim_email, payload) hmailserver exploit github
page or their official contact channels before making the exploit public. Pentest - Everything SMTP - LuemmelSec