What is CVE-2025-11723?

CVE-2025-11723 is a medium-severity vulnerability in Croixhaug Appointment Booking Calendar — Simply Schedule Appointments Plugin, classified under Use of Insufficiently Random Values. CVSS score: 6.5/10. Published 2026-01-06.

How severe is CVE-2025-11723?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Croixhaug Appointment Booking Calendar — Simply Schedule Appointments Plugin

CVE-2025-11723

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.6.9.5 via the hash() function due to use of a hardc…

EPSS: 0.001 (24.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Croixhaug Appointment Booking Calendar — Simply Schedule Appointments Plugin — versions 0

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

Frequently asked questions

What is CVE-2025-11723?: CVE-2025-11723 is a medium-severity vulnerability in Croixhaug Appointment Booking Calendar — Simply Schedule Appointments Plugin, classified under Use of Insufficiently Random Values. CVSS score: 6.5/10. Published 2026-01-06.
How severe is CVE-2025-11723?: Medium severity. CVSS v3 base score is 6.5 out of 10.