CVE-2020-12456

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mitel:mivoice_connect_client:*:*:*:*:*:*:*:*", "matchCriteriaId": "83575D08-AD76-4FBA-B8D9-92AF1A100442", "versionEndExcluding": "214.100.1223.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A remote code execution vulnerability in Mitel MiVoice Connect Client before 214.100.1223.0 could allow an attacker to execute arbitrary code in the chat notification window, due to improper rendering of chat messages. A successful exploit could allow an attacker to steal session cookies, perform directory traversal, and execute arbitrary scripts in the context of the Connect client."}, {"lang": "es", "value": "Una vulnerabilidad de ejecuci\u00f3n de c\u00f3digo remota en Mitel MiVoice Connect Client versiones anteriores a 214.100.1223.0, podr\u00eda permitir a un atacante ejecutar c\u00f3digo arbitrario en la ventana de notificaci\u00f3n de chat, debido a una representaci\u00f3n inapropiada de los mensajes de chat. Un explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante robar cookies de sesi\u00f3n, llevar a cabo un salto de directorio y ejecutar scripts arbitrarios en el contexto del cliente Connect"}], "id": "CVE-2020-12456", "lastModified": "2026-06-17T02:51:50.510", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-08-26T19:15:14.237", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.mitel.com/support/security-advisories"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0006"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mitel.com/support/security-advisories"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0006"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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