CVE-2020-26973

Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed

published January 7, 2021

CVSS
—
EPSS
2%
Percentile
75.9
In the wild
Unconfirmed
What it is

Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01623 · 75.9th percentile
Published
2021-01-07T13:53Z
EPSS history
Timeline
  • 07 JAN 13:53Z
    Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed
    cvelistv5