CVE-2020-3420

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{"affected": [{"affectedData": [{"product": "Cisco Unified Communications Manager", "vendor": "Cisco", "versions": [{"status": "affected", "version": "N/A"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "8D51B262-3855-4384-A0EA-FE115D544953", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface.\r\nThe vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.There are no workarounds that address this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad en la interfaz de administraci\u00f3n basada en web de Cisco Unified Communications Manager (Unified CM) y Cisco Unified Communications Manager Session Management Edition (Unified CM SME) podr\u00eda permitir que un atacante remoto autenticado realice un ataque de cross-site scripting (XSS) contra un usuario de la interfaz. La vulnerabilidad se debe a una validaci\u00f3n insuficiente de la entrada proporcionada por el usuario por parte de la interfaz de administraci\u00f3n basada en web del software afectado. Un atacante podr\u00eda aprovechar esta vulnerabilidad insertando datos maliciosos en un campo de datos espec\u00edfico de la interfaz. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante ejecutar c\u00f3digo de secuencia de comandos arbitrario en el contexto de la interfaz afectada o acceder a informaci\u00f3n confidencial basada en el navegador. No existen workarounds que aborden esta vulnerabilidad."}], "id": "CVE-2020-3420", "lastModified": "2026-06-17T03:18:14.200", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "psirt@cisco.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2020-3420", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-11-18T16:23:14.999250Z", "version": "2.0.3"}}]}, "published": "2024-11-18T16:15:06.630", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq"}, {"source": "psirt@cisco.com", "tags": ["Not Applicable"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "psirt@cisco.com", "type": "Secondary"}]}

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