Vulnerability · Published Aug 19, 2026 · Assigned by WPScan
CVE-2026-19416KiviCare < 4.5.4 - Patient+ Cross-Patient Appointment Modification via IDOR
Medium 4.3
In plain English
A medium-severity authorization bypass via user-controlled key in KiviCare from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 81.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
References
- https://wpscan.com/vulnerability/ef2aa44b-3624-4e6d-9b25-e33d4a1a21d2/ exploit, vdb-entry, technical-description