CVE-2021-32661

{"containers": {"cna": {"affected": [{"product": "backstage", "vendor": "backstage", "versions": [{"status": "affected", "version": "< 0.9.5"}]}], "descriptions": [{"lang": "en", "value": "Backstage is an open platform for building developer portals. In versions of Backstage's Techdocs Plugin (`@backstage/plugin-techdocs`) prior to 0.9.5, a malicious internal actor can potentially upload documentation content with malicious scripts by embedding the script within an `object` element. This may give access to sensitive data when other users visit that same documentation page. 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 `0.9.5` release of `@backstage/plugin-techdocs`."}], "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": "2021-06-03T17:25:10.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"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"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-gg96-f8wr-p89f"}], "source": {"advisory": "GHSA-gg96-f8wr-p89f", "discovery": "UNKNOWN"}, "title": "TechDocs object element script injection", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32661", "STATE": "PUBLIC", "TITLE": "TechDocs object element script injection"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "backstage", "version": {"version_data": [{"version_value": "< 0.9.5"}]}}]}, "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. In versions of Backstage's Techdocs Plugin (`@backstage/plugin-techdocs`) prior to 0.9.5, a malicious internal actor can potentially upload documentation content with malicious scripts by embedding the script within an `object` element. This may give access to sensitive data when other users visit that same documentation page. 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 `0.9.5` release of `@backstage/plugin-techdocs`."}]}, "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/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"}, {"name": "https://github.com/backstage/backstage/security/advisories/GHSA-gg96-f8wr-p89f", "refsource": "CONFIRM", "url": "https://github.com/backstage/backstage/security/advisories/GHSA-gg96-f8wr-p89f"}]}, "source": {"advisory": "GHSA-gg96-f8wr-p89f", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:25:31.127Z"}, "title": "CVE Program Container", "references": [{"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"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-gg96-f8wr-p89f"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-32661", "datePublished": "2021-06-03T17:25:10.000Z", "dateReserved": "2021-05-12T00:00:00.000Z", "dateUpdated": "2024-08-03T23:25:31.127Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "backstage", "vendor": "backstage", "versions": [{"status": "affected", "version": "< 0.9.5"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:\\@backstage\\/plugin-techdocs:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "867A30F2-E72C-46DD-AA29-0CC18EE8E3AC", "versionEndExcluding": "0.9.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Backstage is an open platform for building developer portals. In versions of Backstage's Techdocs Plugin (`@backstage/plugin-techdocs`) prior to 0.9.5, a malicious internal actor can potentially upload documentation content with malicious scripts by embedding the script within an `object` element. This may give access to sensitive data when other users visit that same documentation page. 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 `0.9.5` release of `@backstage/plugin-techdocs`."}, {"lang": "es", "value": "Backstage es una plataforma abierta para construir portales para desarrolladores. En las versiones del plugin Techdocs de Backstage (\"@backstage/plugin-techdocs\") anteriores a versi\u00f3n 0.9.5, un actor interno malicioso puede potencialmente cargar contenido de documentaci\u00f3n con scripts maliciosos insertando el script dentro de un elemento \"object\". Esto puede dar acceso a datos confidenciales cuando otros usuarios visiten esa misma p\u00e1gina de documentaci\u00f3n. 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 \"0.9.5\" de \"@backstage/plugin-techdocs\""}], "id": "CVE-2021-32661", "lastModified": "2026-06-17T03:53:22.260", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "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": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-03T18:15:08.800", "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": ["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-gg96-f8wr-p89f"}, {"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": ["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-gg96-f8wr-p89f"}], "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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