CVE-2020-15676
6.1
MEDIUM
CVSS 3.1
EPSS 1.00%
Description
Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
How to fix CVE-2020-15676
To remediate CVE-2020-15676, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 78.3.0esr-1 or later
- —upgrade to 1:78.3.1-1 or later
Is CVE-2020-15676 being exploited?
Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 78.3.0esr-1
- from 0, < 1:78.3.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |