What the vulnerability does
01Description
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.6.2 via the 'service_id' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to create approved bookings against services explicitly restricted to admins and agents, consuming restricted appointment capacity and triggering unauthorized bookings for admin/agent-only services. The bypass works via both the params[booking][service_id] parameter in steps__load_step and the presets[selected_service] parameter in steps__start, both of which are publicly accessible without authentication.
Explanation of Vulnerability in Simple Terms
02Summary
LatePoint versions up to 5.6.2 contain an integrity vulnerability allowing network-based modification of data without authentication. An attacker can alter information processed by the plugin, though confidentiality and availability are not affected. The vulnerability requires no user interaction and is exploitable over the network.
What an attacker can do
03Attacker Capabilities
Modify data processed by the plugin without logging in.
Potential impact on your site
04Site Impact
Attackers can alter booking data, event details, or other information stored by LatePoint without credentials.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
July 2, 2026
CVE published
