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

Quick assessment

Affected
iqonicdesign KiviCare – Clinic & Patient Management System (EHR)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin KiviCare 4.1.2及之前版本存在授权问题漏洞，该漏洞源于patientSocialLogin函数未验证社交提供商访问令牌，可能导致身份验证绕过。

CVSS 7.3 · High EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-2991

Vulnerability Information
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Vulnerability Title
KiviCare – Clinic & Patient Management System (EHR) <= 4.1.2 - Unauthenticated Authentication Bypass via Social Login Token
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin KiviCare 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin KiviCare 4.1.2及之前版本存在授权问题漏洞，该漏洞源于patientSocialLogin函数未验证社交提供商访问令牌，可能导致身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
iqonicdesign KiviCare – Clinic & Patient Management System (EHR) * ~ 4.1.2 -

II. Public POCs for CVE-2026-2991

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III. Intelligence Information for CVE-2026-2991

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Patches & Fixes for CVE-2026-2991 (3)

Vendor Advisories for CVE-2026-2991 (1)

IV. Related Vulnerabilities

Same product: KiviCare – Clinic & Patient Management System (EHR)
Same vendor: iqonicdesign
Same weakness: CWE-287

V. Comments for CVE-2026-2991

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