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CVE-2026-2991

HIGH 7.3 CVSS 3.1
Published
March 18, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Description

The KiviCare – Clinic & Patient Management System (EHR) plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 4.1.2. This is due to the `patientSocialLogin()` function not verifying the social provider access token before authenticating a user. This makes it possible for unauthenticated attackers to log in as any patient registered on the system by providing only their email address and an arbitrary value for the access token, bypassing all credential verification. The attacker gains access to sensitive medical records, appointments, prescriptions, and billing information (PII/PHI breach). Additionally, authentication cookies are set before the role check, meaning the auth cookies for non-patient users (including administrators) are also set in the HTTP response headers, even though a 403 response is returned.

Affected WordPress components

  • KiviCare – Clinic & Patient Management System (EHR) Plugin · kivicare-clinic-management-system
    Confirmed match Active
    Up to and including 4.1.2
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • iqonicdesign KiviCare – Clinic & Patient Management System (EHR) — Up to and including 4.1.2

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L1852
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L284
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3467409/
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8d22448b-aa8e-4775-b7c5-e7bae94a3f6d?source=cve
  • nvd.nist.gov Official NVD record