Vulnerability in Mozilla Firefox
CVE-2023-5729
A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been leveraged in a spoofing attack. This vulnerability affects Firefox < 119.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (46.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
References
- bugzilla.mozilla.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2023-45/ (Vendor Advisory)
- security.gentoo.org/glsa/202401-10
Frequently asked questions
- What is CVE-2023-5729?
- CVE-2023-5729 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 4.3/10. Published 2023-10-25.
- How severe is CVE-2023-5729?
- Medium severity. CVSS v3 base score is 4.3 out of 10.