WebKitGTK and WPE WebKit prior to version 2.24.1 are vulnerable to address bar spoofing upon certain JavaScript redirections. An attacker could cause malicious web content to be displayed as if for a trusted URI. This is similar to the CVE-2018-8383 issue in Microsoft Edge.
Late TLS certificate verification in WebKitGTK+ prior to 2.6.6 allows remote attackers to view a secure HTTP request, including, for example, secure cookies.