The will-navigate event that apps use to prevent navigations to unexpected destinations as per our security recommendations can be bypassed when a sub-frame performs a top-frame navigation across sites.
11.0.0-beta.110.0.19.3.08.5.1Sandbox all your iframes using the <code>sandbox</code> attribute. This will prevent them creating top-frame navigations and is good practice anyway.
If you have any questions or comments about this advisory:
{
"severity": "HIGH",
"github_reviewed_at": "2020-10-06T14:12:16Z",
"cwe_ids": [
"CWE-20",
"CWE-693"
],
"github_reviewed": true,
"nvd_published_at": "2020-10-06T18:15:00Z"
}