Appointment Hour Booking <= 1.5.87 - Unauthenticated Price Manipulation
| CVE | CVE-2026-16282 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | August 3, 2026 |
| Last Updated | August 21, 2026 |
| Researchers |
Alessandro Greco
Giovambattista Ianni |
Description
The Appointment Hour Booking plugin for WordPress is vulnerable to Price Manipulation in versions up to, and including, 1.5.87. This is due to the extract_appointments function accepting a user-supplied price via the tcost parameter (stored as $fieldpostedcost) and assigning it directly to the booking record, exploitable by unauthenticated users who could also trigger the vulnerable code path by posting bccf_payment_option_paypal=0. This makes it possible for unauthenticated attackers to manipulate the final booking price by submitting an arbitrary cost value, bypassing server-side price enforcement.
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Vulnerability Details for Appointment Hour Booking – Booking Calendar
| Software Type | Plugin |
|---|---|
| Software Slug | appointment-hour-booking (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.5.88, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Appointment Hour Booking – Booking Calendar
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