CVE-2026-16282
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk8th percentile - higher than 8% of all known CVEs
Summary
The Appointment Hour Booking WordPress plugin before version 1.5.88 does not validate a client-supplied booking price against the server-side configured service price. Unauthenticated users can submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.
Risk Assessment
An attacker can alter booking prices, leading to financial losses, incorrect reports, and billing issues. It can also disrupt the integrity of booking data.
Recommendation
Update the Appointment Hour Booking plugin to version 1.5.88 or later, which includes the price validation fix. Additionally, consider adding extra server-side validation for critical operations.
Original NVD description (English source)
The Appointment Hour Booking WordPress plugin before 1.5.88 does not validate a client-supplied booking price against the server-side configured service price, allowing unauthenticated users to submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.