CVE-2026-2991

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "KiviCare \u2013 Clinic & Patient Management System (EHR)", "vendor": "iqonicdesign", "versions": [{"lessThanOrEqual": "4.1.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The KiviCare \u2013 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."}, {"lang": "es", "value": "El plugin KiviCare \u2013 Clinic &amp; Patient Management System (EHR) para WordPress es vulnerable a la omisi\u00f3n de autenticaci\u00f3n en todas las versiones hasta la 4.1.2, inclusive. Esto se debe a que la funci\u00f3n 'patientSocialLogin()' no verifica el token de acceso del proveedor social antes de autenticar a un usuario. Esto hace posible que atacantes no autenticados inicien sesi\u00f3n como cualquier paciente registrado en el sistema proporcionando solo su direcci\u00f3n de correo electr\u00f3nico y un valor arbitrario para el token de acceso, omitiendo toda verificaci\u00f3n de credenciales. El atacante obtiene acceso a registros m\u00e9dicos sensibles, citas, recetas e informaci\u00f3n de facturaci\u00f3n (violaci\u00f3n de PII/PHI). Adem\u00e1s, las cookies de autenticaci\u00f3n se establecen antes de la verificaci\u00f3n de rol, lo que significa que las cookies de autenticaci\u00f3n para usuarios no pacientes (incluidos los administradores) tambi\u00e9n se establecen en los encabezados de respuesta HTTP, aunque se devuelve una respuesta 403."}], "id": "CVE-2026-2991", "lastModified": "2026-06-17T10:32:27.313", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-2991", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-18T16:05:03.718315Z", "version": "2.0.3"}}]}, "published": "2026-03-18T16:16:27.400", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L1852"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/kivicare-clinic-management-system/trunk/app/controllers/api/AuthController.php#L284"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3467409/"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/8d22448b-aa8e-4775-b7c5-e7bae94a3f6d?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.1.2]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "KiviCare \u2013 Clinic & Patient Management System (EHR)", "source": "cna", "vendor": "iqonicdesign"}, "product": "kivicare_\u2013_clinic_&_patient_management_system_(ehr)", "vendor": "iqonicdesign"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-04-08T18:38:53.885115+00:00", "value": {"mitigation_remediation": ["Apply the latest KiviCare plugin version (4.1.3 or later).", "If an update is unavailable, disable the social login feature or restrict it to trusted scopes.", "Verify that authentication cookies are not set for unauthorized users by testing 403 responses.", "Review user login activity logs for suspicious access patterns.", "If the plugin is not critical, consider removing it entirely until a patch is applied."], "summary": {"action": "Immediate Patch", "impact": "Authentication Bypass"}, "threat_synthesis": {"affected_systems": "Any installation of the KiviCare \u2013 Clinic & Patient Management System (EHR) plugin for WordPress with a version equal to or older than 4.1.2 is vulnerable.", "description_and_impact": "The vulnerability allows attackers to authenticate as any patient by supplying an email address and a dummy access token. The plugin\u2019s patientSocialLogin() function fails to validate the social provider token before setting authentication cookies. This bypass grants unauthenticated users full access to protected patient data, including medical records, appointments, prescriptions, and billing information, constituting a PII/PHI breach. The flaw also sets authentication cookies for non\u2011patient users before performing a role check, leading to unnecessary cookie transmission even when the server responds with a 403 status.", "risk_and_exploitability": "The CVSS base score of 7.3 indicates a high level of risk, while the EPSS score of less than 1% denotes a low likelihood of exploitation in the wild. The issue is not listed in CISA\u2019s KEV catalog. Based on the description, the attack vector is unauthenticated via web requests, requiring only a user\u2019s email address, which can be supplied in a crafted HTTP request. No special privileges or configuration are needed to exploit the flaw."}}}}, "created": "2026-03-19T08:56:29.309213+00:00", "updated": "2026-04-08T20:01:30.898977+00:00", "vendors": ["iqonicdesign", "iqonicdesign$PRODUCT$kivicare_\u2013_clinic_&_patient_management_system_(ehr)", "wordpress", "wordpress$PRODUCT$wordpress"]}