CVE-2026-11990
Received Received - Intake

Authorization Bypass in KiviCare WordPress Plugin

Publication date: 2026-07-10

Last updated on: 2026-07-10

Assigner: Wordfence

Description
The KiviCare – Clinic & Patient Management System (EHR) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to mark arbitrary pending appointments as Confirmed and forge an associated completed payment record in wp_kc_payments_appointment_mappings using an attacker-supplied payment ID, bypassing payment entirely. This exploit is achievable on a default installation because the gateway resolution logic returns all registered gateways regardless of admin-enabled status, making the manual (KCPayLater) gateway always selectable.

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Meta Information

Published
2026-07-10
Last Modified
2026-07-10
Generated
2026-07-10
AI Q&A
2026-07-10
EPSS Evaluated
N/A
NVD
CVE-2026-11990
EUVD
EUVD-2026-42864

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
kivicare kivicare_clinic_patient_management_system to 4.4.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

The KiviCare – Clinic & Patient Management System (EHR) plugin for WordPress has an authorization bypass vulnerability in all versions up to and including 4.4.0. This means the plugin does not properly verify if a user is authorized to perform certain actions.

As a result, unauthenticated attackers can mark arbitrary pending appointments as Confirmed and create forged completed payment records using attacker-supplied payment IDs, effectively bypassing the payment process entirely.

This exploit is possible even on a default installation because the payment gateway logic returns all registered gateways regardless of whether they are enabled by the admin, allowing attackers to select the manual payment gateway (KCPayLater) to carry out the attack.

Impact Analysis

This vulnerability allows attackers to confirm appointments without proper authorization and forge payment records without actually making payments.

This can lead to financial losses, as services may be rendered without payment, and can also disrupt the integrity of appointment and payment data within the system.

Additionally, it can undermine trust in the system's reliability and security, potentially affecting both the clinic's operations and patient management.

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