CVE-2021-21123

{"containers": {"cna": {"affected": [{"product": "Chrome", "vendor": "Google", "versions": [{"lessThan": "88.0.4324.96", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Insufficient data validation in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page."}], "problemTypes": [{"descriptions": [{"description": "Insufficient data validation", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-02-24T19:51:06.000Z", "orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html"}, {"tags": ["x_refsource_MISC"], "url": "https://crbug.com/1137247"}, {"tags": ["x_refsource_MISC"], "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21123"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "chrome-cve-admin@google.com", "ID": "CVE-2021-21123", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Chrome", "version": {"version_data": [{"version_affected": "<", "version_value": "88.0.4324.96"}]}}]}, "vendor_name": "Google"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Insufficient data validation in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Insufficient data validation"}]}]}, "references": {"reference_data": [{"name": "https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html", "refsource": "MISC", "url": "https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html"}, {"name": "https://crbug.com/1137247", "refsource": "MISC", "url": "https://crbug.com/1137247"}, {"name": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21123", "refsource": "MISC", "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21123"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:01:13.980Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://crbug.com/1137247"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21123"}]}]}, "cveMetadata": {"assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "assignerShortName": "Chrome", "cveId": "CVE-2021-21123", "datePublished": "2021-02-09T13:55:59.000Z", "dateReserved": "2020-12-21T00:00:00.000Z", "dateUpdated": "2024-08-03T18:01:13.980Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "Chrome", "vendor": "Google", "versions": [{"lessThan": "88.0.4324.96", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "chrome-cve-admin@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "matchCriteriaId": "565ED6B8-8F41-4E79-A280-33CB321E607F", "versionEndExcluding": "88.0.4324.96", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*", "matchCriteriaId": "F4045760-DF4A-4728-9B52-0280FC45C05D", "versionEndExcluding": "88.0.705.50", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient data validation in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page."}, {"lang": "es", "value": "Una comprobaci\u00f3n insuficiente de datos en File System API en Google Chrome versiones anteriores a 88.0.4324.96, permiti\u00f3 a un atacante remoto omitir las restricciones del sistema de archivos por medio de una p\u00e1gina HTML dise\u00f1ada"}], "id": "CVE-2021-21123", "lastModified": "2026-06-17T03:34:52.270", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "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": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-02-09T14:15:15.843", "references": [{"source": "chrome-cve-admin@google.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html"}, {"source": "chrome-cve-admin@google.com", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://crbug.com/1137247"}, {"source": "chrome-cve-admin@google.com", "tags": ["Third Party Advisory"], "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21123"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://crbug.com/1137247"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21123"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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