When an "iframe" has a "sandbox" attribute and its content is specified using "srcdoc", that content does not inherit the containing page's Content Security Policy (CSP) as it should unless the sandbox attribute included "allow-same-origin". This vulnerability affects Firefox < 55.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "55.0.1+build2-0ubuntu0.14.04.2", "binary_name": "firefox" }, { "binary_version": "55.0.1+build2-0ubuntu0.14.04.2", "binary_name": "firefox-dev" }, { "binary_version": "55.0.1+build2-0ubuntu0.14.04.2", "binary_name": "firefox-globalmenu" }, { "binary_version": "55.0.1+build2-0ubuntu0.14.04.2", "binary_name": "firefox-mozsymbols" }, { "binary_version": "55.0.1+build2-0ubuntu0.14.04.2", "binary_name": "firefox-testsuite" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "55.0.1+build2-0ubuntu0.16.04.2", "binary_name": "firefox" }, { "binary_version": "55.0.1+build2-0ubuntu0.16.04.2", "binary_name": "firefox-dev" }, { "binary_version": "55.0.1+build2-0ubuntu0.16.04.2", "binary_name": "firefox-globalmenu" }, { "binary_version": "55.0.1+build2-0ubuntu0.16.04.2", "binary_name": "firefox-mozsymbols" }, { "binary_version": "55.0.1+build2-0ubuntu0.16.04.2", "binary_name": "firefox-testsuite" } ] }