CVE-2023-25730
5.4
MEDIUM
CVSS 3.1
EPSS 0.11%
Description
A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
How to fix CVE-2023-25730
To remediate CVE-2023-25730, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 102.8.0esr-1~deb11u1 or later
- —upgrade to 1:102.8.0-1~deb11u1 or later
Is CVE-2023-25730 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 102.8.0esr-1~deb11u1
- from 0, < 1:102.8.0-1~deb11u1
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 |