Remote frame navigations was incorrectly permitted to local resources in Blink in Google Chrome prior to 71.0.3578.80 allowed an attacker who convinced a user to install a malicious extension to access files on the local file system via a crafted Chrome Extension.
71.0.3578.80Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:HI:NA:N6.5/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N