CVE-2026-17538 - Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress <= 5.6.9 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Customer PII Modification

CVE-2026-17538 - Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress <= 5.6.9 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Customer PII Modification

https://cvefeed.io/rssfeed/latest.atom / Thu, 10/08/2026 - 01:51
CVE ID :CVE-2026-17538
Published : Oct. 7, 2026, 11:27 p.m. | 19 minutes ago
Description :The LatePoint - Appointment Booking & Reservation plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 5.6.9. This is due to the process_step_customer() function using is_user_logged_in() as the sole gate before merging POSTed customer data into an existing LatePoint customer, without any ownership checks. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the personal information (first name, last name, email, phone, notes) of arbitrary LatePoint customers, and, when the contact_merge setting is 'phone', to overwrite the victim's email address and take over the account via a password reset.
Severity: 0.0 | NA
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