{"cve":"CVE-2017-7823","nvd":{"published":"2018-06-11T21:29:11.000","modified":"2026-06-17T01:25:17.117","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["http://www.securityfocus.com/bid/101059","http://www.securitytracker.com/id/1039465","https://access.redhat.com/errata/RHSA-2017:2831","https://access.redhat.com/errata/RHSA-2017:2885","https://bugzilla.mozilla.org/show_bug.cgi?id=1396320"],"products":["debian:debian_linux","mozilla:firefox","mozilla:thunderbird","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_workstation"],"source":"nvd","synced_at":"2026-10-19T20:51:47.459859389+00:00"},"epss":{"cve":"CVE-2017-7823","score":0.01439,"percentile":0.73177,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}