Improper Access Control Affecting Firefox package, versions [,95)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Improper Access Control vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-UNMANAGED-FIREFOX-7578242
- published4 Aug 2024
- disclosed4 Aug 2024
- creditUnknown
Introduced: 4 Aug 2024
CVE-2021-43540 (opens in a new tab)How to fix?
Upgrade Firefox to version 95 or higher.
Overview
Affected versions of this package are vulnerable to Improper Access Control by allowing ServiceWorkers installed by WebExtensions to retain access to another domain even after the ServiceWorker is uninstalled.