Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 process JavaScript event-handler attributes of a MARQUEE element within a sandboxed IFRAME element that lacks the sandbox="allow-scripts" attribute value, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web site.
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{ "binaries": [ { "binary_name": "firefox", "binary_version": "48.0+build2-0ubuntu0.16.04.1" }, { "binary_name": "firefox-dev", "binary_version": "48.0+build2-0ubuntu0.16.04.1" }, { "binary_name": "firefox-globalmenu", "binary_version": "48.0+build2-0ubuntu0.16.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "48.0+build2-0ubuntu0.16.04.1" }, { "binary_name": "firefox-testsuite", "binary_version": "48.0+build2-0ubuntu0.16.04.1" } ], "availability": "No subscription required" }