CVE-2017-5385

CVE-2017-5385 describes an information disclosure vulnerability in Mozilla Firefox versions prior to 51. Specifically, data transmitted via multipart channels, like multipart/x-mixed-replace MIME types, would bypass the referrer-policy response header. This flaw carries a CVSS v3 score of 7.5 (HIGH), indicating that an unauthenticated attacker could remotely exploit it with low complexity to achieve high confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.