CVE-2019-17016

When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule

published January 8, 2020

CVSS
—
EPSS
2%
Percentile
80.5
In the wild
Unconfirmed
What it is

When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01988 · 80.5th percentile
Published
2020-01-08T21:27Z
EPSS history
Timeline
  • 08 JAN 21:27Z
    When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule
    cvelistv5