CVE-2024-47873

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{"affected": [{"affectedData": [{"product": "PhpSpreadsheet", "vendor": "PHPOffice", "versions": [{"status": "affected", "version": "< 1.29.4"}, {"status": "affected", "version": ">= 2.0.0, < 2.1.3"}, {"status": "affected", "version": ">= 2.2.0, < 2.3.2"}, {"status": "affected", "version": ">= 3.3.0, < 3.4.0"}]}], "source": "security-advisories@github.com"}, {"affectedData": [{"cpes": ["cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "phpspreadsheet", "vendor": "phpoffice", "versions": [{"lessThan": "1.29.4", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "2.1.3", "status": "affected", "version": "2.0.0", "versionType": "custom"}, {"lessThan": "2.3.2", "status": "affected", "version": "2.2.0", "versionType": "custom"}, {"lessThan": "3.4.0", "status": "affected", "version": "3.3.0", "versionType": "custom"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "matchCriteriaId": "9D7D4C48-5455-494C-962A-B8386CA53A62", "versionEndExcluding": "1.29.4", "vulnerable": true}, {"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "matchCriteriaId": "18AFC177-DDB6-4C8C-96C7-F299CFA6C96D", "versionEndExcluding": "2.1.3", "versionStartIncluding": "2.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "matchCriteriaId": "A7B91E75-3DDC-4395-B48C-A77147597F21", "versionEndExcluding": "2.3.2", "versionStartIncluding": "2.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "matchCriteriaId": "14F9EC71-3B04-4765-8437-4BEFBDEA8673", "versionEndExcluding": "3.4.0", "versionStartIncluding": "3.3.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The XmlScanner class has a scan method which should prevent XXE attacks. However, prior to versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0, the regexes used in the `scan` method and the findCharSet method can be bypassed by using UCS-4 and encoding guessing. An attacker can bypass the sanitizer and achieve an XML external entity attack. Versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0 fix the issue."}, {"lang": "es", "value": "PhpSpreadsheet es una librer\u00eda PHP para leer y escribir archivos de hojas de c\u00e1lculo. La clase XmlScanner tiene un m\u00e9todo de escaneo que deber\u00eda evitar ataques XXE. Sin embargo, antes de las versiones 1.9.4, 2.1.3, 2.3.2 y 3.4.0, las expresiones regulares utilizadas en el m\u00e9todo `scan` y en el m\u00e9todo findCharSet se pueden omitir utilizando UCS-4 y adivinando la codificaci\u00f3n. Un atacante puede omitir el desinfectante y lograr un ataque de entidad externa XML. Las versiones 1.9.4, 2.1.3, 2.3.2 y 3.4.0 solucionan el problema."}], "id": "CVE-2024-47873", "lastModified": "2026-06-17T07:57:53.700", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-47873", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-11-18T18:28:33.862619Z", "version": "2.0.3"}}]}, "published": "2024-11-18T17:15:11.973", "references": [{"source": "security-advisories@github.com", "tags": ["Product"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/39fc51309181e82593b06e2fa8e45ef8333a0335/src/PhpSpreadsheet/Reader/Security/XmlScanner.php"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-jw4x-v69f-hh5w"}, {"source": "security-advisories@github.com", "tags": ["Not Applicable"], "url": "https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing"}, {"source": "security-advisories@github.com", "tags": ["Technical Description"], "url": "https://www.w3.org/TR/xml/#sec-guessing-no-ext-info"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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