CVE-2021-43540

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-43540
WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with the extension. This vulnerability affects Firefox < 95.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 Issue Tracking Permissions Required Vendor Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-52/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 Issue Tracking Permissions Required Vendor Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-52/ Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
History

21 Nov 2024, 06:29

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 - Issue Tracking, Permissions Required, Vendor Advisory () https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 - Issue Tracking, Permissions Required, Vendor Advisory
References () https://security.gentoo.org/glsa/202202-03 - Third Party Advisory () https://security.gentoo.org/glsa/202202-03 - Third Party Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-52/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-52/ - Vendor Advisory

12 Jul 2022, 17:42

Type Values Removed Values Added
CWE CWE-732 NVD-CWE-noinfo

16 Mar 2022, 17:23

Type Values Removed Values Added
References (GENTOO) https://security.gentoo.org/glsa/202202-03 - (GENTOO) https://security.gentoo.org/glsa/202202-03 - Third Party Advisory

22 Feb 2022, 01:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202202-03 -

10 Dec 2021, 14:49

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.5
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 - Issue Tracking, Permissions Required, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-52/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-52/ - Vendor Advisory
CWE CWE-732
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

08 Dec 2021, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-12-08 22:15

Updated : 2024-11-21 06:29

NVD link : CVE-2021-43540

Mitre link : CVE-2021-43540

CVE.ORG link : CVE-2021-43540

JSON object : View

Products Affected

mozilla

  • firefox
CWE
NVD-CWE-noinfo