CVE-2021-21340

{"containers": {"cna": {"affected": [{"product": "TYPO3.CMS", "vendor": "TYPO3", "versions": [{"status": "affected", "version": ">= 10.0.0, <= 10.4.13"}, {"status": "affected", "version": ">= 11.0.0, <= 11.1.0"}]}], "descriptions": [{"lang": "en", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 ."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79 Cross-site Scripting (XSS)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-03-23T01:50:34.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92"}, {"tags": ["x_refsource_MISC"], "url": "https://packagist.org/packages/typo3/cms-backend"}, {"tags": ["x_refsource_MISC"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-007"}], "source": {"advisory": "GHSA-fjh3-g8gq-9q92", "discovery": "UNKNOWN"}, "title": "Cross-Site Scripting in Content Preview", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-21340", "STATE": "PUBLIC", "TITLE": "Cross-Site Scripting in Content Preview"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "TYPO3.CMS", "version": {"version_data": [{"version_value": ">= 10.0.0, <= 10.4.13"}, {"version_value": ">= 11.0.0, <= 11.1.0"}]}}]}, "vendor_name": "TYPO3"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 ."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-79 Cross-site Scripting (XSS)"}]}]}, "references": {"reference_data": [{"name": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92", "refsource": "CONFIRM", "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92"}, {"name": "https://packagist.org/packages/typo3/cms-backend", "refsource": "MISC", "url": "https://packagist.org/packages/typo3/cms-backend"}, {"name": "https://typo3.org/security/advisory/typo3-core-sa-2021-007", "refsource": "MISC", "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-007"}]}, "source": {"advisory": "GHSA-fjh3-g8gq-9q92", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:09:15.910Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://packagist.org/packages/typo3/cms-backend"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-007"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-21340", "datePublished": "2021-03-23T01:50:34.000Z", "dateReserved": "2020-12-22T00:00:00.000Z", "dateUpdated": "2024-08-03T18:09:15.910Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "TYPO3.CMS", "vendor": "TYPO3", "versions": [{"status": "affected", "version": ">= 10.0.0, <= 10.4.13"}, {"status": "affected", "version": ">= 11.0.0, <= 11.1.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "matchCriteriaId": "C031A87F-5A82-48F8-AB02-FED0CDFE08A2", "versionEndExcluding": "10.4.14", "versionStartIncluding": "10.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "matchCriteriaId": "F696292E-3CC6-416B-9F99-6C1287B1D78D", "versionEndExcluding": "11.1.1", "versionStartIncluding": "11.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 ."}, {"lang": "es", "value": "TYPO3 es un sistema de gesti\u00f3n de contenidos web de c\u00f3digo abierto basado en PHP. En TYPO3 versiones anteriores a la 10.4.14, 11.1.1 se ha descubierto que los campos de la base de datos utilizados como _descriptionColumn_ son vulnerables al cross-site scripting cuando su contenido se previsualiza. Se necesita una cuenta de usuario v\u00e1lida para explotar esta vulnerabilidad. Esto se ha corregido en las versiones 10.4.14, 11.1.1"}], "id": "CVE-2021-21340", "lastModified": "2026-06-17T03:35:19.993", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-23T02:15:12.533", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92"}, {"source": "security-advisories@github.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://packagist.org/packages/typo3/cms-backend"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-007"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://packagist.org/packages/typo3/cms-backend"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-007"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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