{"id":"CVE-2025-55030","title":"Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks","summary":"Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks. This vulnerability was fixed in Firefox for…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-640"],"vendor":"mozilla","product":"firefox","affected":["firefox < 142.0"],"patched":["firefox 142.0"],"published":"2025-08-19","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-55030","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1976304","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-68/","label":"security@mozilla.org"}],"tags":["nvd"],"epss":0.00158,"epssPercentile":0.04255,"ingestedAt":"2026-09-30T18:17:24.454Z","slug":"CVE-2025-55030","body":"## Overview\n\nFirefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks. This vulnerability was fixed in Firefox for iOS 142.\n\n## Affected\n\n- `firefox < 142.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 142.0`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}