{"id":"CVE-2025-8039","title":"In some cases search terms persisted in the URL bar even after navigating away from the search page","summary":"In some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cwe":["CWE-200"],"vendor":"mozilla","product":"firefox","affected":["firefox < 140.1","firefox < 141.0","thunderbird < 140.1","thunderbird < 141.0"],"patched":["firefox 141.0","thunderbird 141.0"],"published":"2025-07-22","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-8039","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1970997","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-56/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-59/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-61/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-63/","label":"security@mozilla.org"}],"tags":["nvd"],"epss":0.00299,"epssPercentile":0.20349,"ingestedAt":"2026-09-30T18:17:24.451Z","slug":"CVE-2025-8039","body":"## Overview\n\nIn some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.\n\n## Affected\n\n- `firefox < 140.1`\n- `firefox < 141.0`\n- `thunderbird < 140.1`\n- `thunderbird < 141.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 141.0`\n- `thunderbird 141.0`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}