CVE-2021-29440

{"containers": {"cna": {"affected": [{"product": "grav", "vendor": "getgrav", "versions": [{"status": "affected", "version": "< 1.7.11"}]}], "descriptions": [{"lang": "en", "value": "Grav is a file based Web-platform. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. The issue was addressed in version 1.7.11."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "description": "{\"CWE-94\":\"Improper Control of Generation of Code ('Code Injection')\"}", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-08-02T15:09:46.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc"}, {"tags": ["x_refsource_MISC"], "url": "https://packagist.org/packages/getgrav/grav"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities"}], "source": {"advisory": "GHSA-g8r4-p96j-xfxc", "discovery": "UNKNOWN"}, "title": "Twig allowing dangerous PHP functions by default", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-29440", "STATE": "PUBLIC", "TITLE": "Twig allowing dangerous PHP functions by default"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "grav", "version": {"version_data": [{"version_value": "< 1.7.11"}]}}]}, "vendor_name": "getgrav"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Grav is a file based Web-platform. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. The issue was addressed in version 1.7.11."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "{\"CWE-94\":\"Improper Control of Generation of Code ('Code Injection')\"}"}]}]}, "references": {"reference_data": [{"name": "https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc", "refsource": "CONFIRM", "url": "https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc"}, {"name": "https://packagist.org/packages/getgrav/grav", "refsource": "MISC", "url": "https://packagist.org/packages/getgrav/grav"}, {"name": "http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html"}, {"name": "https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities", "refsource": "MISC", "url": "https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities"}]}, "source": {"advisory": "GHSA-g8r4-p96j-xfxc", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T22:02:51.882Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://packagist.org/packages/getgrav/grav"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-29440", "datePublished": "2021-04-13T19:55:13.000Z", "dateReserved": "2021-03-30T00:00:00.000Z", "dateUpdated": "2024-08-03T22:02:51.882Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "grav", "vendor": "getgrav", "versions": [{"status": "affected", "version": "< 1.7.11"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*", "matchCriteriaId": "3DDB0D78-D53F-4A5F-B1EB-0A4E3E986E30", "versionEndExcluding": "1.7.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Grav is a file based Web-platform. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. The issue was addressed in version 1.7.11."}, {"lang": "es", "value": "Grav es una plataforma web basada en archivos.&#xa0;El procesamiento de Twig de p\u00e1ginas est\u00e1ticas puede ser habilitado en la materia inicial por cualquier usuario administrativo autorizado para crear o editar p\u00e1ginas.&#xa0;Como el procesador Twig se ejecuta sin sandbox, este comportamiento puede ser usado para obtener una ejecuci\u00f3n de c\u00f3digo arbitraria y elevar los privilegios en la instancia.&#xa0;El problema se solucion\u00f3 en la versi\u00f3n 1.7.11"}], "id": "CVE-2021-29440", "lastModified": "2026-06-17T03:47:38.757", "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": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.7, "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": "2021-04-13T20:15:22.360", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc"}, {"source": "security-advisories@github.com", "tags": ["Product", "Third Party Advisory"], "url": "https://packagist.org/packages/getgrav/grav"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://packagist.org/packages/getgrav/grav"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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