What is CVE-2026-16282?

CVE-2026-16282 is a medium-severity vulnerability in Appointment Hour Booking, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-08-08.

How severe is CVE-2026-16282?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Appointment Hour Booking

CVE-2026-16282

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.

Vulnerability class: Broken Authentication

EPSS: 0.002 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Unknown Appointment Hour Booking — versions 0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16282?: CVE-2026-16282 is a medium-severity vulnerability in Appointment Hour Booking, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-08-08.
How severe is CVE-2026-16282?: Medium severity. CVSS v3 base score is 5.3 out of 10.