CVE-2026-13164 Unauthenticated self-registration in MailerUp allows access to stored email data

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 instances where registration is intended to be restricted, becaus...