Auth bypass in Mailerup

CVE-2026-13164

Missing Authentication for Critical Function (CWE-306) in the RegisterView (apps/accounts/views.py), exposed at POST /api/auth/register/, in MailerUp <1.0.1 allows a remote, unauthenticated attacker to self-register a working account on in…

Vulnerability class: Broken Authentication

EPSS: 0.004 (33.3th percentile) — read the EPSS interpretation.