CVE-2026-11990
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
The KiviCare – Clinic & Patient Management System (EHR) plugin for WordPress up to version 4.4.0 inclusive contains an authorization bypass vulnerability. Unauthenticated attackers can mark arbitrary pending appointments as Confirmed and forge associated payment records, bypassing payment entirely.
Risk Assessment
The organization is at risk of unauthorized appointment confirmation and payment forgery, potentially leading to financial losses, data integrity issues, and billing problems.
Recommendation
Immediately update the KiviCare plugin to the latest available version that fixes this vulnerability. Until the update is applied, consider temporarily disabling the plugin or implementing additional authorization controls.
Other vulnerabilities in KiviCare
See all- CVE-2026-15453Medium
The KiviCare plugin for WordPress up to version 4.5.1 is vulnerable to generic SQL injection via the 'searchTerm' parameter. Authenticated attackers with custom-level access can append additional SQL queries to extract sensitive information from the database.
- CVE-2026-13610High
The KiviCare WordPress plugin before version 4.5.2 does not restrict the roles assignable through its unauthenticated registration endpoint, allowing unauthenticated attackers to create an active, privileged clinic-staff (doctor) account with full access to patient records, billing and clinic data.
- CVE-2026-13613High
The KiviCare WordPress plugin before 4.5.2 does not properly sanitise and escape user-supplied parameters before using them in a SQL query. Authenticated users with a clinic staff-level role can perform SQL injection.
- CVE-2026-13612Medium
The KiviCare WordPress plugin before 4.5.2 does not verify that the requesting user owns the records being accessed. Authenticated patient-level users can read other patients' bills, invoices and appointment details.
- CVE-2026-15073Medium
The KiviCare – Clinic & Patient Management System (EHR) plugin for WordPress is vulnerable to generic SQL Injection via the 'orderby' parameter in all versions up to and including 4.5.0 due to insufficient escaping and lack of proper SQL query preparation. This allows authenticated attackers with Doctor-level access or higher to append additional SQL queries, potentially extracting sensitive database information.
- CVE-2026-15072Medium
The KiviCare – Clinic & Patient Management System (EHR) plugin for WordPress is vulnerable to generic SQL injection via the 'orderby' parameter in versions up to and including 4.5.0. This is due to insufficient escaping and lack of proper SQL query preparation.
- CVE-2026-40792Medium
In KiviCare versions <= 4.2.1, there is a vulnerability related to Insecure Direct Object References (IDOR) for subscribers.
Original NVD description (English source)
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.