I recently found an Android application, which uses a WebView with enabled JavaScript. In this webview I am able to browse from their provided FAQ page to twitter, and from twitter basically everywhere I want.

So my question is: Is this a vulnerability I need to report? Is XSS in updated WebViews still a thing, since I am able to escape the website of the app and browse anywhere I want?

I tried to find answers in Google, but did not manage to find any updated information.

Thanks in advance

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