What is GHSA-r9q4-xcm5-g5ww?

GHSA-r9q4-xcm5-g5ww is a security advisory published by GitHub Security Advisories with Medium severity. The Appointment Hour Booking WordPress plugin before 1.5.88 does not validate a client-supplied...

Which CVE IDs does GHSA-r9q4-xcm5-g5ww cover?

GHSA-r9q4-xcm5-g5ww covers the following CVE IDs: CVE-2026-16282. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-r9q4-xcm5-g5ww?

GHSA-r9q4-xcm5-g5ww has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-r9q4-xcm5-g5wwMediumCVSS 5.3

The Appointment Hour Booking WordPress plugin before 1.5.88 does not validate a client-supplied...

Vendor

GitHub Security Advisories

Published

August 8, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-16282 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-16282
https://wpscan.com/vulnerability/e87116af-d202-434b-9f47-e61e9c886240
https://github.com/advisories/GHSA-r9q4-xcm5-g5ww