CVE-2016-2831
Mozilla: Entering fullscreen and persistent pointerlock without user permission (MFSA 2016-58)
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · June 9, 2016
Updated · November 21, 2025
Description
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.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:P/I:N/A:N
CWE not specified