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CVE-2025-67491

Estado: AnalizadaAlta (8.5)—

OpenEMR is a free and open source electronic health records and medical practice management application. Versions 5.0.0.5 through 7.0.3.4 have a stored cross-site scripting vulnerability in the ub04 helper of the billing interface. The variable `$data` is passed in a click event handler enclosed in single quotes without proper sanitization. Thus, despite `json_encode` a malicious user can still inject a payload such as ` ac' ><img src=x onerror=alert(document.cookie)> ` to trigger the bug.

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This vulnerability allows low privileged users to embed malicious JS payloads on the server and perform stored XSS attack. This, in turn makes it possible for malicious users to steal the session cookies and perform unauthorized actions impersonating administrators. Version 7.0.4 patches the issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Stored XSS en interfaz de facturación (CWE-79) explotable por usuarios con privilegios bajos (PR:L) mediante inyección de payload JS. Permite robo de cookies de sesión para suplantar administradores.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User TrainingRestrict Web-Based ContentApplication Developer GuidanceActive Directory ConfigurationUser Account ManagementPrivileged Account Management

Tecnologías afectadas (1)

Open-emr — Openemr

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-67491",
  "cveTags": [],
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2025-67491",
          "role": "CISA Coordinator",
          "options": [
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              "automatable": "no"
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              "technicalImpact": "total"
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          "integrityImpact": "LOW",
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          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
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          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
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          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "published": "2026-02-25T01:16:08.963",
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      "url": "https://github.com/openemr/openemr/blob/a65b11d8b8e973b8758ce0dc3efb4b6ec0466d85/interface/billing/ub04_helpers.php#L52-L60",
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      "url": "https://github.com/openemr/openemr/commit/66a11c2d72ade16c4a908cd839d27cd7b261f97a",
      "tags": [
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        "Vendor Advisory"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
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          "value": "CWE-79"
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  "descriptions": [
    {
      "lang": "en",
      "value": "OpenEMR is a free and open source electronic health records and medical practice management application. Versions 5.0.0.5 through 7.0.3.4 have a stored cross-site scripting vulnerability in the ub04 helper of the billing interface. The variable `$data` is passed in a click event handler enclosed in single quotes without proper sanitization. Thus, despite `json_encode` a malicious user can still inject a payload such as ` ac' ><img src=x onerror=alert(document.cookie)> ` to trigger the bug. This vulnerability allows low privileged users to embed malicious JS payloads on the server and perform stored XSS attack. This, in turn makes it possible for malicious users to steal the session cookies and perform unauthorized actions impersonating administrators. Version 7.0.4 patches the issue."
    },
    {
      "lang": "es",
      "value": "OpenEMR es una aplicación gratuita y de código abierto para la gestión de historias clínicas electrónicas y consultas médicas. Las versiones 5.0.0.5 a 7.0.3.4 tienen una vulnerabilidad de secuencias de comandos entre sitios almacenadas en el ayudante ub04 de la interfaz de facturación. La variable `$data` se pasa en un controlador de eventos de clic entre comillas simples sin la debida desinfección. Por lo tanto, a pesar de «json_encode», un usuario malintencionado aún puede inyectar una carga útil como \"ac' &gt;\" para activar el error. Esta vulnerabilidad permite a los usuarios con privilegios bajos incrustar cargas útiles JS maliciosas en el servidor y realizar ataques XSS almacenados. Esto, a su vez, hace posible que los usuarios malintencionados roben las cookies de sesión y realicen acciones no autorizadas suplantando a los administradores. La versión 7.0.4 corrige el problema."
    }
  ],
  "lastModified": "2026-06-17T09:57:43.990",
  "configurations": [
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              "versionEndExcluding": "7.0.4",
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          "operator": "OR"
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