CVE-2024-48917

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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, in a bypass of the previously reported `CVE-2024-47873`, the regexes from the `findCharSet` method, which is used for determining the current encoding can be bypassed by using a payload in the encoding UTF-7, and adding at end of the file a comment with the value `encoding=\"UTF-8\"` with `\"`, which is matched by the first regex, so that `encoding='UTF-7'` with single quotes `'` in the XML header is not matched by the second regex. 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, en una omisi\u00f3n del `CVE-2024-47873` informado anteriormente, las expresiones regulares del m\u00e9todo `findCharSet`, que se utiliza para determinar la codificaci\u00f3n actual, se pueden omitir utilizando un payload en la codificaci\u00f3n UTF-7 y agregando al final del archivo un comentario con el valor `encoding=\"UTF-8\"` con `\"`, que coincide con la primera expresi\u00f3n regular, de modo que `encoding='UTF-7'` con comillas simples `'` en el encabezado XML no coincida con la segunda expresi\u00f3n regular. 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-2024-48917", "lastModified": "2026-06-17T07:59:02.040", "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-2024-48917", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-11-18T20:14:30.431041Z", "version": "2.0.3"}}]}, "published": "2024-11-18T20:15:05.403", "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-7cc9-j4mv-vcjp"}, {"source": "security-advisories@github.com", "tags": ["Not Applicable"], "url": "https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing"}], "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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