The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
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{ "availability": "No subscription required", "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "thunderbird-dev", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "thunderbird-globalmenu", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "thunderbird-testsuite", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:52.4.0+build1-0ubuntu0.16.04.2" } ] }
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