{ "CVE_data_meta": { "ASSIGNER": "security@mozilla.org", "ID": "CVE-2017-7834", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Firefox", "version": { "version_data": [ { "version_affected": "<", "version_value": "57" } ] } } ] }, "vendor_name": "Mozilla" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A \"data:\" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when \"data:\" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "data: URLs opened in new tabs bypass CSP protections" } ] } ] }, "references": { "reference_data": [ { "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1358009", "refsource": "CONFIRM", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1358009" }, { "name": "https://www.mozilla.org/security/advisories/mfsa2017-24/", "refsource": "CONFIRM", "url": "https://www.mozilla.org/security/advisories/mfsa2017-24/" }, { "name": "101832", "refsource": "BID", "url": "http://www.securityfocus.com/bid/101832" }, { "name": "1039803", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1039803" } ] } }