CVE-2026-11398 Missing authorization in LatePoint – Calendar Booking Plugin for Appointments and Events
Unauthenticated attackers can modify customer PII in LatePoint WordPress plugin if guest bookings are enabled.
- 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-2026-11398?
CVE-2026-11398 is a medium-severity missing authorization vulnerability in LatePoint – Calendar Booking Plugin for Appointments and Events, published on 3 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.6.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to modify the personally identifiable information (first name, last name, phone number, and notes) of any existing customer record, including those linked to administrator accounts, by submitting the booking form with a known customer's email address. Exploitation requires the plugin to be configured with guest bookings enabled (is_customer_auth_disabled() returning true), which is necessary for the vulnerable unauthenticated code path in process_step_customer() to be reached.
Weakness: CWE-862
Which versions are affected by CVE-2026-11398?
How do I fix CVE-2026-11398?
No fix has been published for CVE-2026-11398 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-2026-11398 being exploited?
There is no known exploitation of CVE-2026-11398 in the wild and no public exploit code.
Sources
Also known as GHSA-w64h-p64p-r649.