CVE-2026-104671 TutorStarter < 4.0.4 - Unauthenticated User Registration Bypass via AJAX
Unauthenticated attackers can create user accounts in TutorStarter themes even when registration is disabled, potentially leading to unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104671?
CVE-2026-104671 is a medium-severity missing authorization vulnerability in Unknown TutorStarter, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-104671?
How do I fix CVE-2026-104671?
No fix has been published for CVE-2026-104671 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-104671 being exploited?
There is no known exploitation of CVE-2026-104671 in the wild and no public exploit code.
Sources
Also known as GHSA-f66r-cp58-ph5f.