CVE-2019-11761
5.4
MEDIUM
CVSS 3.1
EPSS 0.41%
Description
By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
How to fix CVE-2019-11761
To remediate CVE-2019-11761, upgrade the affected package to a fixed version below.
- —upgrade to 68.2.0esr-1 or later
- —upgrade to 1:68.2.1-1 or later
Is CVE-2019-11761 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 68.2.0esr-1
- from 0, < 1:68.2.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |