Executive brief
The MotoPress Hotel Booking plugin for WordPress fails to verify that a user owns a customer record before allowing modifications to booking and personal information. Any WordPress user with basic account privileges (Subscriber or higher) can modify the name, email, phone number, and address of any other customer by guessing or iterating customer IDs, leading to direct exposure and alteration of guest data without authorization.
Technical details
This is an Insecure Direct Object Reference (IDOR) vulnerability in the plugin's customer record update functionality. The plugin accepts a mphb_action=update_customer POST request with an arbitrary customer_id parameter and validates only a generic WordPress nonce that is issued to any authenticated user; it does not verify that the authenticated user owns the customer record being modified. An attacker with a low-privileged Subscriber account can enumerate customer IDs and overwrite PII fields (first_name, last_name, email, phone, country). The vulnerability is network-reachable and requires only valid WordPress authentication; no additional user interaction is needed. The fix is available in version 6.2.3 and later, which should add proper ownership verification before permitting customer record modifications.
Affected products
- MotoPress Hotel Booking before 6.2.3
Timeline
- 2026-08-06: disclosed
- 2026-08-06: patched: Fixed in version 6.2.3