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…

published December 8, 2021

CVSS
—
EPSS
1%
Percentile
59.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00890 · 59.0th percentile
Published
2021-12-08T21:20Z
EPSS history
Timeline
  • 08 DEC 21:20Z
    WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with…
    cvelistv5