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KiviCare CVE-2026-13611

| EUVDEUVD-2026-68992 MEDIUM
Information Exposure (CWE-200)
2026-09-01 WPScan GHSA-7wpp-qcpv-5hf7
5.3
CVSS 3.1 · Vendor: WPScan
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Identify WordPress site with KiviCare
  2. Delivery
    Send unauthenticated GET to vulnerable REST endpoint
  3. Exploit
    Retrieve full patient roster (PHI)
  4. Execution
    If payment gateway configured, retrieve secret key
  5. Impact
    Exploit key for financial fraud or credential reuse

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

No special conditions are required for patient roster disclosure - any unauthenticated remote attacker can reach the vulnerable REST endpoint on a default WordPress installation with KiviCare installed. Payment gateway secret key exposure additionally requires that a payment gateway integration be actively configured within the KiviCare plugin settings. Exploitation is limited by: the target site must be running KiviCare plugin version below 4.5.5; the WordPress REST API must be publicly accessible (default configuration); and payment key exposure specifically requires the optional payment gateway feature to be in use. There is no required user interaction, no authentication, and no elevated complexity.

Impact

The official CVSS 3.1 score of 5.3 (C:L) appears to underweight the actual impact of this vulnerability. The CVSS vector AV:N/AC:L/PR:N/UI:N correctly reflects remote unauthenticated exploitation with no complexity, but C:L (partial confidentiality) does not adequately represent payment gateway secret key exposure, which is a high-sensitivity credential enabling financial fraud. The patient roster disclosure also carries HIPAA/PHI implications beyond generic 'low' confidentiality. No EPSS score was provided and this CVE is not in CISA KEV, but a public exploit exists on WPScan - the combination of PR:N, AC:L, and a published POC makes this trivially exploitable for any attacker who identifies a vulnerable installation. Real-world priority is elevated for any healthcare or e-commerce WordPress site running KiviCare: patient data and financial secrets are the targets, not just generic information disclosure.

Exploit ScenarioDerived

An attacker scans for WordPress sites running KiviCare using fingerprinting tools or the WPScan database, then issues unauthenticated HTTP GET requests to the vulnerable REST endpoints to retrieve the full patient roster. On sites where a payment gateway is configured within KiviCare, the same or adjacent endpoint returns the payment gateway secret key, which the attacker can use to perform fraudulent transactions or further API abuse. A public POC is available via WPScan, making this a script-accessible attack requiring no specialized knowledge.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 01, 2026

Unauthenticated REST endpoint access in the KiviCare WordPress plugin (before 4.5.5) exposes both a clinic's full patient roster and, critically, the configured payment gateway secret key to any unauthenticated remote attacker. The vulnerability stems from missing authorization checks on specific REST API routes, requiring no credentials or user interaction to exploit. A publicly available proof-of-concept is documented by WPScan, materially lowering the bar for exploitation across any WordPress site running an unpatched version of this clinic management plugin.

RemediationAI

Upgrade the KiviCare WordPress plugin to version 4.5.5 or later immediately - this is the vendor-released patch that introduces proper authorization checks on the affected REST endpoints. The fix is confirmed by the WPScan advisory at https://wpscan.com/vulnerability/b3f986c8-fa7f-4115-9f33-7e74180256f1/. If immediate patching is not possible, a compensating control is to disable the WordPress REST API for unauthenticated users via a security plugin (e.g., Disable REST API) or by adding authentication enforcement at the web server or WAF layer for /wp-json/ routes - note this may break other plugins or themes that rely on public REST access. For sites with a payment gateway configured in KiviCare, treat the exposed secret key as compromised: rotate the payment gateway credentials with your provider immediately regardless of whether exploitation is confirmed, as key exposure is silent.

Affected VersionsENISA

KiviCare 0 <4.5.5

Affected Packages

euvd kivicare fix: 4.5.5

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

KiviCare is a WordPress plugin designed for clinic and medical practice management, exposing functionality via the WordPress REST API. The root cause is a missing authorization check (consistent with CWE-862: Missing Authorization) on one or more REST endpoints - the plugin fails to verify caller identity or role before returning sensitive data. Two distinct data classes are exposed: protected health information (PHI) in the form of a patient roster, and a payment gateway secret key when a payment integration is configured. The CPE identifier cpe:2.3:a:unknown:kivicare:*:*:*:*:*:* covers all versions prior to the 4.5.5 fix. The WordPress REST API, accessible via /wp-json/, is publicly reachable on default installations, making authorization enforcement the only barrier to this data.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (WPScan) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 7.5 HIGH

Payment gateway secret key disclosure warrants C:H; PR:N confirmed by REST endpoint requiring no authentication per description.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

2
Patch available
Sep 01, 2026 - 09:16 EUVD
CVE Published
Sep 01, 2026 - 07:39 cve.org
MEDIUM 5.3

DescriptionCVE.org

The KiviCare WordPress plugin before 4.5.5 does not perform authorization checks on some of its REST endpoints, allowing unauthenticated attackers to disclose the patient roster and, when a payment gateway is configured, the payment gateway secret key.

Threat Intelligence Overview

EPSS Score
0.2%
Top 91% exploitable
Prevalence
Low
Niche medical clinic management WordPress plugin, limited healthcare-sector deployments
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

CVE-2026-13613 HIGH POC
8.8 Aug 12

SQL injection in the KiviCare WordPress plugin (all versions before 4.5.2) enables authenticated clinic staff users to e

CVE-2022-0786 CRITICAL POC
9.8 Jun 13

The KiviCare WordPress plugin before 2.3.9 does not sanitise and escape some parameters before using them in SQL stateme

CVE-2023-2628 HIGH POC
8.8 Jun 27

The KiviCare WordPress plugin before 3.2.1 does not have CSRF checks (either flawed or missing completely) in various AJ

CVE-2024-11728 HIGH POC
7.5 Dec 06

The KiviCare - Clinic & Patient Management System (EHR) plugin for WordPress is vulnerable to SQL Injection via the 'vis

CVE-2026-13612 MEDIUM POC
4.3 Aug 12

Insecure Direct Object Reference (IDOR) in KiviCare WordPress plugin before 4.5.2 allows any authenticated patient-level

CVE-2023-2623 MEDIUM POC
6.5 Jun 27

The KiviCare WordPress plugin before 3.2.1 does not restrict the information returned in a response and returns all user

CVE-2023-2624 MEDIUM POC
6.1 Jun 27

The KiviCare WordPress plugin before 3.2.1 does not sanitise and escape a parameter before outputting it back in the pag

CVE-2023-2627 MEDIUM POC
4.3 Jun 27

The KiviCare WordPress plugin before 3.2.1 does not have proper CSRF and authorisation checks in various AJAX actions, a

CVE-2026-73188 HIGH
7.5 Aug 13

Unauthenticated sensitive data exposure in KiviCare WordPress plugin versions 4.5.1 and below allows remote, unauthentic

CVE-2026-25383 HIGH
7.1 Mar 25

A Reflected Cross-Site Scripting (XSS) vulnerability exists in Iqonic Design's KiviCare clinic management system through

CVE-2025-1572 MEDIUM
6.5 Feb 28

The KiviCare - Clinic & Patient Management System (EHR) plugin for WordPress is vulnerable to SQL Injection via the ‘u_i

CVE-2026-25034 MEDIUM
6.5 Mar 25

Iqonic Design KiviCare clinic management system versions 3.6.16 and earlier contain an authorization bypass vulnerabilit

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