CVE-2022-22759
9.6
CRITICAL
CVSS 3.1
EPSS 0.33%
Description
If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document that e.g. had a JavaScript event handler - the event handler would have run despite the iframe's sandbox. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
How to fix CVE-2022-22759
To remediate CVE-2022-22759, upgrade the affected package to a fixed version below.
- —upgrade to 91.6.0esr-1~deb11u1 or later
- —upgrade to 1:91.6.0-1~deb11u1 or later
Is CVE-2022-22759 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 91.6.0esr-1~deb11u1
- from 0, < 1:91.6.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |