CVE-2018-6096: Improper Input Validation

A JavaScript focused window could overlap the fullscreen notification in Fullscreen in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to obscure the full screen warning via a crafted HTML page...

CVE-2018-17476: Undefined Security Weakness

Incorrect dialog placement in Cast UI in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to obscure the full screen warning via a crafted HTML page...