Auth bypass in Tutorstarter

CVE-2026-104671

The TutorStarter WordPress theme before 4.0.4 does not respect the site's user registration setting in one of its AJAX registration handlers, allowing unauthenticated visitors to create WordPress user accounts even when user registration is disabled.

Vulnerability class: Broken Access Control

Published .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • Tutorstarter

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-104671?
CVE-2026-104671 is a medium-severity vulnerability in Tutorstarter, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-10-08.
How severe is CVE-2026-104671?
Medium severity. CVSS v3 base score is 5.3 out of 10.