{"id":"CVE-2025-55030","aliases":["EUVD-2025-25227","GHSA-jhw6-rcq8-2vxj"],"status":"published","title":"Content-Disposition headers incorrectly ignored for some MIME types","description":"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 iOS 142.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00167,"percentile":0.06035,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-640"],"published":"2025-08-19T20:52:48Z","modified":"2026-10-05T15:10:00Z","products":[{"vendor":"mozilla","product":"firefox"},{"vendor":"mozilla","product":"firefox for ios"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1976304","tags":["Issue Tracking","Permissions Required"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-68/","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55030"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-68"},{"url":"https://github.com/advisories/GHSA-jhw6-rcq8-2vxj"}],"sources":{"cve":[{"id":"CVE-2025-55030","title":"Content-Disposition headers incorrectly ignored for some MIME types","description":"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 iOS 142.","status":"published","published":"2025-08-19T20:52:48.953Z","modified":"2026-04-13T14:31:50.247Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T14:32:52.839698Z"}],"euvd":[{"id":"EUVD-2025-25227","description":"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 iOS 142.","status":"published","published":"2025-08-19T20:52:48Z","modified":"2026-04-13T14:31:50Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:27.958964Z"}],"ghsa":[{"id":"GHSA-jhw6-rcq8-2vxj","title":"Firefox for iOS would not respect a Content-Disposition header of type Attachment and would...","description":"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 affects Firefox for iOS \u003c 142.","status":"published","published":"2025-08-19T21:30:37Z","modified":"2025-08-20T18:30:20Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T15:03:21.511205Z"}],"nvd":[{"id":"CVE-2025-55030","description":"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 iOS 142.","status":"published","published":"2025-08-19T21:15:28.21Z","modified":"2026-10-05T15:10:00.59Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T14:11:24.730342Z"}]}}