CVE-2026-104766 Privilege escalation in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
Authenticated users with settings edit capability can escalate privileges by modifying default customer role to administrator.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104766?
CVE-2026-104766 is a high-severity vulnerability in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.7.3. This is due to the `OsSettingsController::update()` handler iterating over attacker-supplied `settings` parameters without an allowlist of permitted setting names or values, and `OsSettingsHelper::prepare_value()` performing no role allowlist validation before persisting the `default_wp_role_for_customer` setting — a restriction that exists only in the UI dropdown and is never enforced server-side. This makes it possible for authenticated attackers holding a LatePoint role with the `settings__edit` capability (such as an agent or custom role) to overwrite the default WordPress role for new customers with `administrator`, causing any subsequently self-registered LatePoint customer account to be created with full WordPress administrator privileges. Exploitation requires that a WordPress administrator has granted the `settings__edit` capability to a LatePoint agent or custom role, and that a new customer account is registered through LatePoint after the malicious setting change is persisted.
Weakness: CWE-269
Which versions are affected by CVE-2026-104766?
How do I fix CVE-2026-104766?
No fix has been published for CVE-2026-104766 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104766 being exploited?
There is no known exploitation of CVE-2026-104766 in the wild and no public exploit code.
Sources
Also known as GHSA-h977-fppf-xgg7.