The host is installed with Safari before 13.1.2 on Apple Mac OS X 10.13.6, 10.14.6 or 10.15.x before 10.15.6 and is prone to a privilege escalation vulnerability. A flaw is present in the application, which fails to properly handle an access issue. Successful exploitation may allow an attacker to prevent Content Security Policy from being enforced while processing maliciously crafted web content.