CVE-2026-91008: Unknown Event Booking Manager For Woocommerce

Low severity, CVSS 3.7. EPSS: 0.3% chance of exploitation in the next 30 days.

The Event Booking Manager for WooCommerce WordPress plugin before 5.3.8 does not perform an ownership or authorization check before rendering booking confirmation details, allowing unauthenticated attackers to retrieve registered attendees' personal information (full name, email address, phone number, and custom registration fields) by supplying an enumerable booking reference. Exploitation is limited to sites configured to use the Event Booking Manager for WooCommerce WordPress plugin before 5.3.8's native (non-WooCommerce) checkout, which is not the default.

Affected products

• Unknown Event Booking Manager For Woocommerce: from 5.3.6, before 5.3.8 (fixed in 5.3.8)

Published 2026-09-17. Last modified 2026-09-18.