CVE-2026-17166
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk14th percentile - higher than 14% of all known CVEs
Summary
The Event Booking Manager for WooCommerce plugin up to version 5.3.7 allows authorization bypass. Lack of proper permission checks allows authenticated attackers with contributor access to modify global payment settings, including WooCommerce payment enablement, cart behavior, and login requirements.
Risk Assessment
An attacker can alter payment settings, potentially leading to unauthorized transactions, revenue loss, or integrity breaches in the booking process.
Recommendation
Update the plugin to the latest version. Restrict access to payment settings to administrators only.
Other vulnerabilities in Event Booking Manager for WooCommerce
See all- CVE-2026-16067Medium
The Event Booking Manager for WooCommerce (Pro) WordPress plugin before 5.0.3 does not validate the ticket price on the server during its native (non-WooCommerce) checkout, trusting the per-ticket price supplied by the client instead of re-deriving the event's configured price. This allows unauthenticated users to book paid event tickets for free, obtaining completed bookings and valid tickets at no cost.
- CVE-2026-16064Medium
The Event Booking Manager for WooCommerce WordPress plugin before version 5.3.7 does not properly verify authorization on the object being modified when quick-editing events, only checking a global capability. Users with the Contributor role and above can modify the title and publication status of arbitrary posts and pages on the site, including content they do not own.
- CVE-2026-16063Medium
The Event Booking Manager for WooCommerce WordPress plugin before version 5.3.7 does not sanitise or escape event timeline content submitted by users with post-editing access before storing it and rendering it on the public event page. Users with the Author role and above can inject arbitrary JavaScript that executes in the browser of any visitor viewing the event, including administrators.
- CVE-2026-16062Medium
The Event Booking Manager for WooCommerce WordPress plugin before version 5.3.7 does not prevent the deserialization of user-controlled input in some of its event content fields. Users with Contributor-level access and above can inject PHP objects. No POP chain is present in the plugin itself, but if one is present via another installed plugin, this could lead to actions such as arbitrary file deletion, sensitive data retrieval, or remote code execution. This is an incomplete fix of earlier object-injection advisories.
Original NVD description (English source)
The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify site-wide payment settings — including WooCommerce payment enablement, cart redirect behavior, login requirements for checkout, confirmation page ID, and confirmed ticket statuses — that govern how all event bookings are processed.