WP Hotel Booking accepts negative quantities and client-controlled totals before 2.3.3
WP Hotel Booking before 2.3.3 relies on cart values supplied by an unauthenticated buyer and does not require room quantities or the resulting order total to be non-negative. By submitting manipulated cart data, an attacker can offset legitimate charges and create a confirmed reservation for free or below the configured room price. The booking endpoint or action, parameter names, cart parser, total-calculation and confirmation functions and accepted value ranges are not disclosed.
- Component
- WP Hotel Booking
- Plugin slug
wp-hotel-booking- Affected
- < 2.3.3
- Safe version
2.3.3- Published
- Aug 06, 2026
This CVE was published Aug 06, 2026 and is one of 26 known issues for this plugin.
Update, patch or deactivate.
Update WP Hotel Booking to 2.3.3 or later. Recalculate reservations created on vulnerable versions from server-side prices and valid positive quantities.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The WP Hotel Booking WordPress plugin before 2.3.3 does not ensure that room quantities and the resulting order total are non-negative when placing a booking, and relies on client-controlled cart data, allowing unauthenticated users to create confirmed reservations for free or at an arbitrarily reduced price.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N