CVE-2026-16282 | BDVDB-2026-356396 Detail

Appointment Hour Booking

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

CWE-287 Improper Authentication

References#

https://wpscan.com/vulnerability/e87116af-d202-434b-9f47-e61e9c886240/

Exploit#

https://wpscan.com/vulnerability/e87116af-d202-434b-9f47-e61e9c886240/

History#

Version 12026-08-08Record published in the CVE List.
Version 22026-08-11Most recent update recorded in the CVE List.

Published

Published: 2026-08-08
Last modified: 2026-08-11

Vendor information

Vendor: Not stated
Product: Appointment Hour Booking

Score

5.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 23.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.5.88
Fixed
1.5.88

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.3 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).