XSS is not the only issue in handling the clipboard data exfiltration being the other risk,.I have extended the research to show that: Mario focused on copying data from non-browser applications (like LibreOffice or MS Word) and pasting in browsers and showed that this could lead to XSS. In 2015, the great Mario Heiderich had a presentation called Copy & Pest about this very topic. I am not the first person to cover security risks associated with copying and pasting. In subsequent sections, I’ll explain how such issues can be identified and exploited. This interaction may lead to Cross-Site Scripting as shown in the video below: The victim pastes data from the clipboard.The victim navigates to another site (for instance Gmail) with WYSIWYG editor.The victim copies something from the site to the clipboard,.Its main goal is to raise awareness that the following scenario can make users exposed to attacks: This writeup is a summary of my research on issues in handling copying and pasting in: browsers, popular WYSIWYG editors, and websites.
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