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cveChromeCVE-2021-21127
HistoryFeb 09, 2021 - 2:15 p.m.

CVE-2021-21127

2021-02-0914:15:16
Chrome
web.nvd.nist.gov
174
cve-2021-21127
google chrome
content security policy
bypass
extension
nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.1

Confidence

High

EPSS

0.004

Percentile

74.6%

Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass content security policy via a crafted Chrome Extension.

Affected configurations

Nvd
Vulners
Node
googlechromeRange<88.0.4324.96
OR
microsoftedge_chromiumRange<88.0.705.50
VendorProductVersionCPE
googlechrome*cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
microsoftedge_chromium*cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Chrome",
    "vendor": "Google",
    "versions": [
      {
        "lessThan": "88.0.4324.96",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.1

Confidence

High

EPSS

0.004

Percentile

74.6%