Auth bypass in Appointment Booking Plugin

CVE-2026-105257

The Appointment Booking Plugin WordPress plugin before 5.7.5 does not verify that an authenticated agent-level user is assigned to a customer before returning or searching that customer's record, allowing any agent to read and enumerate the personal information of every customer on the site, including those managed by other agents.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/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)

References

Frequently asked questions

What is CVE-2026-105257?
CVE-2026-105257 is a low-severity vulnerability in Appointment Booking Plugin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 2.7/10. Published 2026-10-21.
How severe is CVE-2026-105257?
Low severity. CVSS v3 base score is 2.7 out of 10.