CVE-2020-26229

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{"affected": [{"affectedData": [{"product": "TYPO3.CMS", "vendor": "TYPO3", "versions": [{"status": "affected", "version": ">= 10.0.0, < 10.4.10"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "matchCriteriaId": "56B032F6-C72B-4963-8C0D-13BFDD5F385A", "versionEndExcluding": "10.4.10", "versionStartIncluding": "10.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2 version 2.9, the processing of XML external entities is disabled per default - and cannot be exploited. Besides that, a valid backend user account is needed. Update to TYPO3 version 10.4.10 to fix the problem described."}, {"lang": "es", "value": "TYPO3 es un sistema de administraci\u00f3n de contenido web de c\u00f3digo abierto basado en PHP.&#xa0;En TYPO3 desde la versi\u00f3n 10.4.0, y anterior a versi\u00f3n 10.4.10, los widgets RSS son susceptibles al procesamiento de entidades externas XML.&#xa0;Esta vulnerabilidad es razonable, pero es te\u00f3rica: no fue posible reproducir la vulnerabilidad con las versiones actuales de PHP de las distribuciones del sistema compatibles y mantenidas.&#xa0;Al menos con libxml2 versi\u00f3n 2.9, el procesamiento de entidades externas XML est\u00e1 deshabilitado por defecto y no puede ser explotada.&#xa0;Adem\u00e1s de eso, se necesita una cuenta de usuario de backend v\u00e1lida.&#xa0;Actualice a TYPO3 versi\u00f3n 10.4.10 para corregir el problema descrito"}], "id": "CVE-2020-26229", "lastModified": "2026-06-17T03:07:52.280", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 3.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:S/C:P/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 2.5, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-11-23T22:15:12.493", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2020-012"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2020-012"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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