CVE-2021-43540
Type:
Unavailable / Other
Severity:
Medium
Publication date:
12/08/2021
Last modified:
03/16/2022
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
Impact
Access Vector: Through network
Access Complexity: Media
Authentication: Not required to exploit
Impact Type: Partially affects on system integrity + No impact on system confidentiality + No impact on system availability
Vulnerable software and versions
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
To consult the complete list of products and versions see this page
References to Advisories, Solutions, and Tools
- https://www.mozilla.org/security/advisories/mfsa2021-52/ (Source: MISC)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 (Source: MISC)
- GLSA-202202-03 (Source: GENTOO)