CVE-2021-43543

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content

published December 8, 2021

CVSS
—
EPSS
1%
Percentile
73.2
In the wild
Unconfirmed
What it is

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01454 · 73.2th percentile
Published
2021-12-08T21:19Z
EPSS history
Timeline
  • 08 DEC 21:19Z
    Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content
    cvelistv5