CVE-2018-18495

WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions

published February 28, 2019

CVSS
—
EPSS
2%
Percentile
79.8
In the wild
Unconfirmed
What it is

WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01931 · 79.8th percentile
Published
2019-02-28T18:00Z
EPSS history
Timeline
  • 28 FEB 18:00Z
    WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions
    cvelistv5