{"cve":"CVE-2018-5142","nvd":{"published":"2018-06-11T21:29:14.607","modified":"2026-06-17T01:59:41.983","status":"Modified","description":"If Media Capture and Streams API permission is requested from documents with \"data:\" or \"blob:\" URLs, the permission notifications do not properly display the originating domain. The notification states \"Unknown protocol\" as the requestee, leading to user confusion about which site is asking for this permission. This vulnerability affects Firefox < 59.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":[],"references":["http://www.securityfocus.com/bid/103386","http://www.securitytracker.com/id/1040514","https://bugzilla.mozilla.org/show_bug.cgi?id=1366357","https://usn.ubuntu.com/3596-1/","https://www.mozilla.org/security/advisories/mfsa2018-06/"],"products":["canonical:ubuntu_linux","mozilla:firefox"],"source":"nvd","synced_at":"2026-10-19T20:51:47.459859389+00:00"},"epss":{"cve":"CVE-2018-5142","score":0.01188,"percentile":0.67921,"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."]}