What is CVE-2026-105198?

CVE-2026-105198 is a medium-severity vulnerability in Appointment Booking Plugin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-10-08.

How severe is CVE-2026-105198?

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

Auth bypass in Appointment Booking Plugin

CVE-2026-105198

The Appointment Booking Plugin WordPress plugin before 5.7.3 does not verify that the caller owns the order referenced by an order-item identifier before rendering that order's confirmation summary, letting an unauthenticated visitor retrieve any customer's name, contact details and order confirmation code by supplying a sequential order-item id.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-08 · last modified 2026-10-08.

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:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Appointment Booking Plugin

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

wpscan.com/vulnerability/736056ca-5825-4cb7-8775-4010efe1f7cd/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-105198?: CVE-2026-105198 is a medium-severity vulnerability in Appointment Booking Plugin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-10-08.
How severe is CVE-2026-105198?: Medium severity. CVSS v3 base score is 5.3 out of 10.