CVE-2021-43540
Global infos:
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.
CVE Status: Modified
References:
Metrics:
| Attribute | Value |
|---|---|
| Attack Complexity | LOW |
| Attack Vector | NETWORK |
| Availability Impact | NONE |
| Base Score | 6.5 |
| Base Severity | MEDIUM |
| Confidentiality Impact | NONE |
| Integrity Impact | HIGH |
| Privileges Required | NONE |
| Scope | UNCHANGED |
| User Interaction | REQUIRED |
| Vector String | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| Exploitability Score | 2.8 |
| Impact Score | 3.6 |
| Source | [email protected] |
| Type | Primary |