CVE-2021-4321 (GCVE-0-2021-4321)
Vulnerability from cvelistv5
Published
2023-07-28 23:26
Modified
2025-02-13 16:28
Severity ?
EPSS score ?
Summary
Policy bypass in Blink in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)
References
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-03T17:23:10.437Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_transferred", ], url: "https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html", }, { tags: [ "x_transferred", ], url: "https://crbug.com/1161891", }, { tags: [ "x_transferred", ], url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { product: "Chrome", vendor: "Google", versions: [ { lessThan: "91.0.4472.77", status: "affected", version: "91.0.4472.77", versionType: "custom", }, ], }, ], descriptions: [ { lang: "en", value: "Policy bypass in Blink in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)", }, ], problemTypes: [ { descriptions: [ { description: "Policy bypass", lang: "en", }, ], }, ], providerMetadata: { dateUpdated: "2023-08-12T05:07:35.653Z", orgId: "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", shortName: "Chrome", }, references: [ { url: "https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html", }, { url: "https://crbug.com/1161891", }, { url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/", }, ], }, }, cveMetadata: { assignerOrgId: "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", assignerShortName: "Chrome", cveId: "CVE-2021-4321", datePublished: "2023-07-28T23:26:53.981Z", dateReserved: "2023-02-12T21:19:11.138Z", dateUpdated: "2025-02-13T16:28:40.942Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { fkie_nvd: { configurations: "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"91.0.4472.77\", \"matchCriteriaId\": \"E013E0FE-A60A-4C98-91CA-F5D06FD43116\"}]}]}]", descriptions: "[{\"lang\": \"en\", \"value\": \"Policy bypass in Blink in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)\"}]", id: "CVE-2021-4321", lastModified: "2024-11-21T06:37:24.677", metrics: "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N\", \"baseScore\": 4.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 1.4}]}", published: "2023-07-29T00:15:10.553", references: "[{\"url\": \"https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html\", \"source\": \"chrome-cve-admin@google.com\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://crbug.com/1161891\", \"source\": \"chrome-cve-admin@google.com\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/\", \"source\": \"chrome-cve-admin@google.com\"}, {\"url\": \"https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://crbug.com/1161891\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]", sourceIdentifier: "chrome-cve-admin@google.com", vulnStatus: "Modified", weaknesses: "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]", }, nvd: "{\"cve\":{\"id\":\"CVE-2021-4321\",\"sourceIdentifier\":\"chrome-cve-admin@google.com\",\"published\":\"2023-07-29T00:15:10.553\",\"lastModified\":\"2024-11-21T06:37:24.677\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Policy bypass in Blink in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"91.0.4472.77\",\"matchCriteriaId\":\"E013E0FE-A60A-4C98-91CA-F5D06FD43116\"}]}]}],\"references\":[{\"url\":\"https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html\",\"source\":\"chrome-cve-admin@google.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://crbug.com/1161891\",\"source\":\"chrome-cve-admin@google.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/\",\"source\":\"chrome-cve-admin@google.com\"},{\"url\":\"https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://crbug.com/1161891\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}", }, }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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