CVE-2026-33304

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{"affected": [{"affectedData": [{"product": "openemr", "vendor": "openemr", "versions": [{"status": "affected", "version": "< 8.0.0.2"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*", "matchCriteriaId": "C78F19AD-BD18-4F61-8B1C-DD099DBC6D34", "versionEndExcluding": "8.0.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, an authorization bypass in the dated reminders log allows any authenticated non-admin user to view reminder messages belonging to other users, including associated patient names and free-text message content, by crafting a GET request with arbitrary user IDs in the `sentTo[]` or `sentBy[]` parameters. Version 8.0.0.2 fixes the issue."}, {"lang": "es", "value": "OpenEMR es una aplicaci\u00f3n de c\u00f3digo abierto y gratuita para registros de salud electr\u00f3nicos y gesti\u00f3n de consultorios m\u00e9dicos. Antes de la versi\u00f3n 8.0.0.2, una omisi\u00f3n de autorizaci\u00f3n en el registro de recordatorios fechados permite a cualquier usuario autenticado no administrador ver mensajes de recordatorio pertenecientes a otros usuarios, incluyendo nombres de pacientes asociados y contenido de mensajes de texto libre, al elaborar una solicitud GET con IDs de usuario arbitrarios en los par\u00e1metros 'sentTo[]' o 'sentBy[]'. La versi\u00f3n 8.0.0.2 corrige el problema."}], "id": "CVE-2026-33304", "lastModified": "2026-06-17T10:37:17.330", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33304", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-20T19:27:22.597527Z", "version": "2.0.3"}}]}, "published": "2026-03-19T21:17:11.700", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/openemr/openemr/commit/21dee7658a5f3b18c5750e3fae7324e875c1703a"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/openemr/openemr/security/advisories/GHSA-66j9-ffq4-h222"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.0.0.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "openemr", "source": "cna", "vendor": "openemr"}, "product": "openemr", "vendor": "openemr"}], "analysis": {"en": {"generated_at": "2026-03-20T16:29:28.788417+00:00", "value": {"mitigation_remediation": ["Upgrade OpenEMR to version 8.0.0.2 or later to address the authorization bypass."], "summary": {"action": "Immediate Patch", "impact": "unauthorized disclosure of patient reminder messages"}, "threat_synthesis": {"affected_systems": "The vulnerability affects OpenEMR versions earlier than 8.0.0.2. Users running these versions on any platform are susceptible; the fix is available in OpenEMR 8.0.0.2 and later releases.", "description_and_impact": "A flaw in the dated reminders log of OpenEMR allows an authenticated user without administrative privileges to access reminder data belonging to other users. By crafting a query that includes arbitrary user identifiers in the sentTo[] or sentBy[] parameters, a user can retrieve patient names, free\u2011text messages, and other sensitive information. This constitutes a confidentiality breach and exposes private health data.", "risk_and_exploitability": "The CVSS v3 score of 6.5 reflects medium severity, while the EPSS score indicates an exploitation probability below 1%. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Exploitation requires remote access to the web interface and authentication of a non\u2011admin account; no special privileges beyond normal user access are needed to construct the malicious GET request."}}}}, "created": "2026-03-20T08:56:17.221898+00:00", "updated": "2026-03-25T11:55:03.959078+00:00", "vendors": ["openemr", "openemr$PRODUCT$openemr"]}