{"id":"CVE-2025-4089","title":"Due to insufficient escaping of special characters in the \"copy as cURL\" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system","summary":"Due to insufficient escaping of special characters in the \"copy as cURL\" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in F…","severity":"medium","cvss":5.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-77"],"vendor":"mozilla","product":"firefox","affected":["firefox < 138.0","thunderbird < 138.0"],"patched":["firefox 138.0","thunderbird 138.0"],"published":"2025-04-29","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-4089","references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-28/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-31/","label":"security@mozilla.org"}],"tags":["nvd"],"epss":0.00186,"epssPercentile":0.07352,"ingestedAt":"2026-09-30T18:17:24.435Z","slug":"CVE-2025-4089","body":"## Overview\n\nDue to insufficient escaping of special characters in the \"copy as cURL\" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 138 and Thunderbird 138.\n\n## Affected\n\n- `firefox < 138.0`\n- `thunderbird < 138.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 138.0`\n- `thunderbird 138.0`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}