What’s Vulnerable › Vulnerabilities
CVE-2026-19416: KiviCare < 4.5.4 - Patient+ Cross-Patient Appointment Modification via IDOR
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-19 · updated 2026-08-26
- Weakness: CWE-639
Description
The KiviCare WordPress plugin before 4.5.4 does not verify that the requesting user owns the appointment being modified, allowing authenticated patient-level users to cancel and reschedule other patients' appointments.
Affected products
- iqonicdesign KiviCare – Clinic & Patient Management System (EHR): before 4.5.4 — fixed in 4.5.4
How to fix
Upgrade to a fixed version: iqonicdesign KiviCare – Clinic & Patient Management System (EHR) 4.5.4. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-19416 or the next vulnerability affects your stack