{"cve":"CVE-2018-5133","nvd":{"published":"2018-06-11T21:29:14.250","modified":"2026-06-17T01:59:41.120","status":"Modified","description":"If the \"app.support.baseURL\" preference is changed by a malicious local program to contain HTML and script content, this content is not sanitized. It will be executed if a user loads \"chrome://browser/content/preferences/in-content/preferences.xul\" directly in a tab and executes a search. This stored preference is also executed whenever an EME video player plugin displays a CDM-disabled message as a notification message. This vulnerability affects Firefox < 59.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-200"],"references":["http://www.securityfocus.com/bid/103386","http://www.securitytracker.com/id/1040514","https://bugzilla.mozilla.org/show_bug.cgi?id=1430511","https://bugzilla.mozilla.org/show_bug.cgi?id=1430974","https://usn.ubuntu.com/3596-1/"],"products":["canonical:ubuntu_linux","mozilla:firefox"],"source":"nvd","synced_at":"2026-10-19T20:51:47.459859389+00:00"},"epss":{"cve":"CVE-2018-5133","score":0.0149,"percentile":0.74113,"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."]}