CVE-2021-37627

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In affected versions it is possible to gain privileged rights in the Contao back end. Installations are only affected if they have untrusted back end users who have access to the form generator. All users are advised to update to Contao 4.4.56, 4.9.18 or 4.11.7. As a workaround users may disable the form generator or disable the login for untrusted back end users."}, {"lang": "es", "value": "Contao es un CMS de c\u00f3digo abierto que permite la creaci\u00f3n de sitios y aplicaciones web escalables. En las versiones afectadas es posible obtener derechos privilegiados en el back-end de Contao. Las instalaciones s\u00f3lo est\u00e1n afectadas si tienen usuarios de back-end no confiables que tengan acceso al generador de formularios. Se recomienda a todos los usuarios que actualicen a Contao versiones 4.4.56, 4.9.18 o 4.11.7. Como soluci\u00f3n, los usuarios pueden desactivar el generador de formularios o desactivar el inicio de sesi\u00f3n para usuarios de back end no confiables"}], "id": "CVE-2021-37627", "lastModified": "2026-06-17T04:00:51.570", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-11T23:15:07.847", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator.html"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/contao/contao/security/advisories/GHSA-hq5m-mqmx-fw6m"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/contao/contao/security/advisories/GHSA-hq5m-mqmx-fw6m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-269"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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