{"id":"CVE-2025-5020","aliases":["EUVD-2025-16036","GHSA-7mfw-wgr7-m3jg","UBUNTU-CVE-2025-5020"],"status":"published","title":"Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses","description":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00235,"percentile":0.1458,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-939"],"published":"2025-05-21T17:18:08Z","modified":"2026-10-05T15:10:00Z","products":[{"vendor":"mozilla","product":"firefox"},{"vendor":"mozilla","product":"firefox for ios"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1951558","tags":["Permissions Required","report"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-39/","tags":["Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-5020"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-39"},{"url":"https://github.com/advisories/GHSA-7mfw-wgr7-m3jg"},{"url":"https://ubuntu.com/security/CVE-2025-5020","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-5020","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-5020","title":"Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses","description":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.","status":"published","published":"2025-05-21T17:18:08.51Z","modified":"2026-04-13T14:30:18.166Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-939"],"updated_at":"2026-11-02T14:32:29.97618Z"}],"euvd":[{"id":"EUVD-2025-16036","description":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.","status":"published","published":"2025-05-21T17:18:08Z","modified":"2026-04-13T14:30:18Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:28.399811Z"}],"ghsa":[{"id":"GHSA-7mfw-wgr7-m3jg","title":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed...","description":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client This vulnerability affects Firefox for iOS \u003c 139.","status":"published","published":"2025-05-21T18:33:32Z","modified":"2025-05-21T21:32:44Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-939"],"updated_at":"2026-11-02T15:02:24.130786Z"}],"nvd":[{"id":"CVE-2025-5020","description":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.","status":"published","published":"2025-05-21T18:15:53.84Z","modified":"2026-10-05T15:10:00.59Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-939"],"updated_at":"2026-11-02T14:11:09.562272Z"}],"osv":[{"id":"UBUNTU-CVE-2025-5020","description":"Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client This vulnerability affects Firefox for iOS \u003c 139.","status":"withdrawn","published":"2025-05-21T18:15:00Z","modified":"2025-07-16T07:48:21.814369Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:50.31802Z"}]}}