{"id":"CVE-2025-3859","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-3859","generatedAt":"2026-10-28T08:27:18.817Z","title":"This vulnerability was fixed in Focus 138.","description":"Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different webpage. This vulnerability was fixed in Focus 138.","published":"2025-04-30T17:15:51.000Z","lastModified":"2026-06-17T09:20:49.000Z","status":"Modified","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-601","CWE-451"],"affected":["mozilla/firefox focus"],"epss":{"score":0.00204,"percentile":0.10291,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1951533","tags":["Issue Tracking"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-33/","tags":["Vendor Advisory"],"source":"security@mozilla.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-3859","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}