Description
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.
Published: 2021-12-08
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-30469 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.
Ubuntu USN Ubuntu USN USN-5186-1 Firefox vulnerabilities
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-04T04:03:06.919Z

Reserved: 2021-11-08T00:00:00.000Z

Link: CVE-2021-43540

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-08T22:15:09.787

Modified: 2024-11-21T06:29:23.320

Link: CVE-2021-43540

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses