CVE-2021-32660

{"containers": {"cna": {"affected": [{"product": "backstage", "vendor": "backstage", "versions": [{"status": "affected", "version": "< 0.6.4"}]}], "descriptions": [{"lang": "en", "value": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In versions of `@backstage/tehdocs-common` prior to 0.6.4, a malicious internal actor is able to upload documentation content with malicious scripts. These scripts would normally be sanitized by the TechDocs frontend, but by tricking a user to visit the content via the TechDocs API, the content sanitazion will be bypassed. If the TechDocs API is hosted on the same origin as the Backstage app or other backend plugins, this may give access to sensitive data. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.6.4` release of `@backstage/techdocs-common`."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-77", "description": "CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-06-03T17:05:11.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/backstage/backstage/releases/tag/release-2021-06-03"}], "source": {"advisory": "GHSA-pwhf-39xg-4rxw", "discovery": "UNKNOWN"}, "title": "TechDocs content sanitization bypass", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32660", "STATE": "PUBLIC", "TITLE": "TechDocs content sanitization bypass"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "backstage", "version": {"version_data": [{"version_value": "< 0.6.4"}]}}]}, "vendor_name": "backstage"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In versions of `@backstage/tehdocs-common` prior to 0.6.4, a malicious internal actor is able to upload documentation content with malicious scripts. These scripts would normally be sanitized by the TechDocs frontend, but by tricking a user to visit the content via the TechDocs API, the content sanitazion will be bypassed. If the TechDocs API is hosted on the same origin as the Backstage app or other backend plugins, this may give access to sensitive data. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.6.4` release of `@backstage/techdocs-common`."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')"}]}]}, "references": {"reference_data": [{"name": "https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw", "refsource": "CONFIRM", "url": "https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw"}, {"name": "https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c", "refsource": "MISC", "url": "https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c"}, {"name": "https://github.com/backstage/backstage/releases/tag/release-2021-06-03", "refsource": "MISC", "url": "https://github.com/backstage/backstage/releases/tag/release-2021-06-03"}]}, "source": {"advisory": "GHSA-pwhf-39xg-4rxw", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:25:31.020Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/backstage/backstage/releases/tag/release-2021-06-03"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-32660", "datePublished": "2021-06-03T17:05:11.000Z", "dateReserved": "2021-05-12T00:00:00.000Z", "dateUpdated": "2024-08-03T23:25:31.020Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "backstage", "vendor": "backstage", "versions": [{"status": "affected", "version": "< 0.6.4"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:\\@backstage\\/techdocs-common:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "F27B8062-50AD-42E1-849B-D5D186943FED", "versionEndExcluding": "0.6.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In versions of `@backstage/tehdocs-common` prior to 0.6.4, a malicious internal actor is able to upload documentation content with malicious scripts. These scripts would normally be sanitized by the TechDocs frontend, but by tricking a user to visit the content via the TechDocs API, the content sanitazion will be bypassed. If the TechDocs API is hosted on the same origin as the Backstage app or other backend plugins, this may give access to sensitive data. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.6.4` release of `@backstage/techdocs-common`."}, {"lang": "es", "value": "Backstage es una plataforma abierta para construir portales para desarrolladores, y techdocs-common contiene funcionalidades comunes para los TechDocs de Backstage. En las versiones de \"@backstage/tehdocs-common\" anteriores a versi\u00f3n 0.6.4, un actor interno malicioso es capaz de subir contenido de documentaci\u00f3n con scripts maliciosos. Estos scripts ser\u00edan normalmente saneados por el frontend de TechDocs, pero al enga\u00f1ar a un usuario a visitar el contenido por medio de la API de TechDocs, el saneamiento del contenido ser\u00e1 omitido. Si la API de TechDocs est\u00e1 alojada en el mismo origen que la aplicaci\u00f3n Backstage u otros plugins del backend, esto puede dar acceso a datos confidenciales. La capacidad de subir contenido malicioso puede estar limitada por los procesos internos de revisi\u00f3n de c\u00f3digo, a menos que el m\u00e9todo de despliegue de TechDocs elegido sea usar un almac\u00e9n de objetos y el actor tenga acceso a subir archivos directamente a ese almac\u00e9n. La vulnerabilidad est\u00e1 parcheada en la versi\u00f3n \"0.6.4\" de \"@backstage/techdocs-common\""}], "id": "CVE-2021-32660", "lastModified": "2026-06-17T03:53:22.133", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-03T17:15:10.583", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/backstage/backstage/releases/tag/release-2021-06-03"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/backstage/backstage/releases/tag/release-2021-06-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxw"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-434"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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