In addition to detecting when a user was taking a screenshot (XXX), a website was able to overlay the 'My Shots' button that appeared, and direct the user to a replica Firefox Screenshots page that could be used for phishing. This vulnerability affects Firefox < 127.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "127.0.2+build1-0ubuntu0.20.04.1", "binary_name": "firefox" }, { "binary_version": "127.0.2+build1-0ubuntu0.20.04.1", "binary_name": "firefox-dev" }, { "binary_version": "127.0.2+build1-0ubuntu0.20.04.1", "binary_name": "firefox-geckodriver" }, { "binary_version": "127.0.2+build1-0ubuntu0.20.04.1", "binary_name": "firefox-mozsymbols" } ] }