{"id":"CVE-2025-5265","title":"Due to insufficient escaping of the ampersand character 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.\n*This bug only affects Firef…","summary":"Due to insufficient escaping of the ampersand character 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.\n*This bug only affects Firef…","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L","cwe":["CWE-77"],"vendor":"mozilla","product":"firefox","affected":["firefox < 115.24.0","firefox < 139.0","firefox >= 116.0, < 128.11.0"],"patched":["firefox 128.11.0"],"published":"2025-05-27","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-5265","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1962301","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-42/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-43/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-44/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-45/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-46/","label":"security@mozilla.org"}],"tags":["nvd"],"epss":0.00211,"epssPercentile":0.10261,"ingestedAt":"2026-09-30T18:17:24.439Z","slug":"CVE-2025-5265","body":"## Overview\n\nDue to insufficient escaping of the ampersand character 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.\n*This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.\n\n## Affected\n\n- `firefox < 115.24.0`\n- `firefox < 139.0`\n- `firefox >= 116.0, < 128.11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 128.11.0`","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}