{"id":"CVE-2024-26283","aliases":["EUVD-2024-23554","GHSA-37wm-h7xg-q6w9"],"status":"published","title":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI...","description":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS \u003c 123.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00278,"percentile":0.20423,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-83"],"published":"2024-02-22T14:56:43Z","modified":"2026-06-17T07:17:32Z","products":[{"vendor":"mozilla","product":"firefox"},{"vendor":"mozilla","product":"firefox for ios"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1850158","tags":["x_transferred","Issue Tracking"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-08/","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26283"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-08"},{"url":"https://github.com/advisories/GHSA-37wm-h7xg-q6w9"}],"sources":{"cve":[{"id":"CVE-2024-26283","description":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS \u003c 123.","status":"published","published":"2024-02-22T14:56:43.86Z","modified":"2024-08-29T13:55:40.992Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-83"],"updated_at":"2026-11-02T14:33:59.512321Z"}],"euvd":[{"id":"EUVD-2024-23554","description":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS \u003c 123.","status":"published","published":"2024-02-22T14:56:43Z","modified":"2024-08-29T13:55:40Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:56:08.302583Z"}],"ghsa":[{"id":"GHSA-37wm-h7xg-q6w9","title":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI...","description":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS \u003c 123.","status":"published","published":"2024-02-22T15:30:39Z","modified":"2024-08-29T21:32:06Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-83"],"updated_at":"2026-11-02T14:58:08.12992Z"}],"nvd":[{"id":"CVE-2024-26283","description":"An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS \u003c 123.","status":"published","published":"2024-02-22T15:15:08.73Z","modified":"2026-06-17T07:17:32.417Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-83"],"updated_at":"2026-11-02T14:09:37.655131Z"}]}}