#git

## Summary After some research it appears that it is possible to obtain a reflected XSS when the server islands feature is used in the targeted application, **regardless of what was intended by the component template(s)**. ## Details Server islands run in their own isolated context outside of the page request and use the following pattern path to hydrate the page: `/_server-islands/[name]`. These paths can be called via GET or POST and use three parameters: - `e`: component to export - `p`: the transmitted properties, encrypted - `s`: for the slots Slots are placeholders for external HTML content, and therefore allow, by default, the injection of code if the component template supports it, nothing exceptional in principle, just a feature. This is where it becomes problematic: it is possible, independently of the component template used, even if it is completely empty, to inject a slot containing an XSS payload, whose parent is a tag whose name is is the absolute path of the island ...

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