Information disclosure in Codepeople Appointment Booking Calendar

CVE-2026-12111

The Appointment Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 1.4.01. This is due to insufficient authorization and missing per-calendar ownership checks in the cpab…

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-12111?
CVE-2026-12111 is a medium-severity vulnerability in Codepeople Appointment Booking Calendar, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-06-18.
How severe is CVE-2026-12111?
Medium severity. CVSS v3 base score is 4.3 out of 10.