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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-2991 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L1852 Wordfence
https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L284 Wordfence
https://plugins.trac.wordpress.org/changeset/3467409/ Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/8d22448b-aa8e-4775-b7c5-e7bae94a3f6d?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-287 Improper Authentication Wordfence  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-2991
NVD Published Date:
03/18/2026
NVD Last Modified:
03/18/2026
Source:
Wordfence