Vulnerability in Mozilla Firefox

CVE-2016-2831

Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 do not ensure that the user approves the fullscreen and pointerlock settings, which allows remote attackers to cause a denial of service (UI outage), or conduct clickjacking or spoofing attacks, via a crafted web site.

EPSS: 0.013 (68.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-2831?
CVE-2016-2831 is a high-severity vulnerability in Mozilla Firefox, classified under CWE-254. CVSS score: 8.8/10. Published 2016-06-13.
How severe is CVE-2016-2831?
High severity. CVSS v3 base score is 8.8 out of 10.