CVE-2018-12396

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events

published February 28, 2019

CVSS
—
EPSS
2%
Percentile
82.8
In the wild
Unconfirmed
What it is

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02273 · 82.8th percentile
Published
2019-02-28T18:00Z
EPSS history
Timeline
  • 28 FEB 18:00Z
    A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events
    cvelistv5