CVE-2024-47873

{"id": "CVE-2024-47873", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2024-11-18T17:15:11.973", "references": [{"url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/39fc51309181e82593b06e2fa8e45ef8333a0335/src/PhpSpreadsheet/Reader/Security/XmlScanner.php", "tags": ["Product"], "source": "security-advisories@github.com"}, {"url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-jw4x-v69f-hh5w", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing", "tags": ["Not Applicable"], "source": "security-advisories@github.com"}, {"url": "https://www.w3.org/TR/xml/#sec-guessing-no-ext-info", "tags": ["Technical Description"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-611"}]}], "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."}], "lastModified": "2025-03-07T16:48:11.150", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D7D4C48-5455-494C-962A-B8386CA53A62", "versionEndExcluding": "1.29.4"}, {"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "18AFC177-DDB6-4C8C-96C7-F299CFA6C96D", "versionEndExcluding": "2.1.3", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A7B91E75-3DDC-4395-B48C-A77147597F21", "versionEndExcluding": "2.3.2", "versionStartIncluding": "2.2.0"}, {"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "14F9EC71-3B04-4765-8437-4BEFBDEA8673", "versionEndExcluding": "3.4.0", "versionStartIncluding": "3.3.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}