CVE-2020-13443

{"id": "CVE-2020-13443", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2020-06-24T15:15:11.617", "references": [{"url": "https://expressionengine.com/blog", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://gist.github.com/mariuszpoplwski/51604d8a6d7d78fffdf590c25e844e09", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "ExpressionEngine before 5.3.2 allows remote attackers to upload and execute arbitrary code in a .php%20 file via Compose Msg, Add attachment, and Save As Draft actions. A user with low privileges (member) is able to upload this. It is possible to bypass the MIME type check and file-extension check while uploading new files. Short aliases are not used for an attachment; instead, direct access is allowed to the uploaded files. It is possible to upload PHP only if one has member access, or registration/forum is enabled and one can create a member with the default group id of 5. To exploit this, one must to be able to send and compose messages (at least)."}, {"lang": "es", "value": "ExpressionEngine versiones anteriores a 5.3.2, permite a atacantes remotos cargar y ejecutar c\u00f3digo arbitrario en un archivo .php%20 por medio de las acciones Componer Msg, Add attachment y Save As Draft. Un usuario con pocos privilegios (miembro) es capaz de cargar esto. Es posible omitir la comprobaci\u00f3n del tipo MIME y la comprobaci\u00f3n de extensi\u00f3n de archivo al cargar nuevos archivos. Los seud\u00f3nimos cortos no se usan para un archivo adjunto; en cambio, se permite el acceso directo a los archivos cargados. Es posible cargar PHP solo si uno tiene acceso de miembro, o registration/forum est\u00e1 habilitado y uno puede crear un miembro con el ID de grupo predeterminado de 5. Para explotar esto, uno debe ser capaz de enviar y redactar mensajes (al menos)"}], "lastModified": "2020-07-02T18:37:07.770", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:expressionengine:expressionengine:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AEC89331-D8D0-4AC1-822A-0CB8E2808E4A", "versionEndExcluding": "5.3.2"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}