Appointment Hour Booking < 1.5.88 - Unauthenticated Booking Price Manipulation via tcost Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16282
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-08 07:17:09 UTC
Updated2026-08-08 07:17:09 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from ADP

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

EPSS: 0.001820000 probability, percentile 0.079550000 (date 2026-08-12)

Problem Types: CWE-287 Improper Authentication | CWE-287 CWE-287 Improper Authentication

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Appointment Hour Booking affected 1.5.88 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/e87116af-d202-434b-9f47-e61e9c886240 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Researcher1: Alessandro Greco aka Aleff; Researcher2: Giovambattista Ianni; Company/Organization: University of Calabria (UNICAL) (en)

CNA: WPScan (en)

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