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TI-2026-15832 Aliases CVE-2026-19416GHSA-q77f-2653-fm5r

KiviCare < 4.5.4 - Patient+ Cross-Patient Appointment Modification via IDOR

Priority LOW 20CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00265 18th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed KiviCare (Unknown): 4.5.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownKiviCarebefore 4.5.44.5.4Patch availableCNA
  • KiviCare VendorUnknown Affected before 4.5.4 Fixed in 4.5.4 Patch available CNA

Remediation

  • Fix · CNA KiviCare (Unknown) Fixed in 4.5.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    KiviCare 4.5.4

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-15833 KiviCare < 4.5.4 - Patient+ Arbitrary Media Attachment Read via IDORPriority LOW 29
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19416
  2. 2026-10-03 Alias added: GHSA-q77f-2653-fm5r

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences