Cross-Site Scripting (XSS) via data:text/html URL Redirection

CVE-2017-5466 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

If a page is loaded from an original site through a hyperlink and contains a redirect to a "data:text/html" URL, triggering a reload will run the reloaded "data:text/html" page with its origin set incorrectly. This allows for a cross-site scripting (XSS) attack. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

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