{"id":"CVE-2026-103418","aliases":["EUVD-2026-98339","GHSA-7fw9-g4rg-xvqv"],"status":"published","title":"Universal XSS via the HTML language attribute in Translation Services","description":"Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00301,"percentile":0.23046,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-10-13T07:19:09Z","modified":"2026-10-14T04:18:08Z","products":[{"vendor":"mozilla","product":"firefox for ios"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2062109"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-105/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103418"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-105"},{"url":"https://github.com/advisories/GHSA-7fw9-g4rg-xvqv"}],"sources":{"cve":[{"id":"CVE-2026-103418","title":"Universal XSS via the HTML language attribute in Translation Services","description":"Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.","status":"published","published":"2026-10-13T07:19:09.898Z","modified":"2026-10-14T03:58:53.731Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:34:37.420074Z"}],"euvd":[{"id":"EUVD-2026-98339","description":"Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.","status":"published","published":"2026-10-13T07:19:09Z","modified":"2026-10-14T03:58:53Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:17.902641Z"}],"ghsa":[{"id":"GHSA-7fw9-g4rg-xvqv","title":"Firefox for iOS directly interpolated the page’s HTML language attribute into translation...","description":"Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.","status":"published","published":"2026-10-13T09:30:45Z","modified":"2026-10-13T15:32:06Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:13:10.715475Z"}],"nvd":[{"id":"CVE-2026-103418","description":"Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.","status":"published","published":"2026-10-13T08:16:59.56Z","modified":"2026-10-14T04:18:08.707Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:56.72789Z"}]}}