7PK - Security Features
The Web Workers implementation in Microsoft Internet Explorer 10 and 11 and Microsoft Edge allows remote attackers to bypass the Same Origin Policy via unspecified vectors, aka "Microsoft Browser Security Feature Bypass Vulnerability."
CWE-254 - Security Features
Security features are integrated into the application infrastructure to protect its resources and the trusted environment against a known exploit, threat, or vulnerability. However, flawed, disabled, or absent security features expose the application to a variety of attacks. This is a multidimensional vulnerability with broad potential impact. It can lead to defacement, confidentiality compromise, system takeover, etc.