CVE-2025-54143

{"id": "CVE-2025-54143", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2025-08-19T21:15:27.557", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1912671", "tags": ["Issue Tracking", "Permissions Required"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-60/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-693"}]}], "descriptions": [{"lang": "en", "value": "Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page. This vulnerability was fixed in Firefox for iOS 141."}, {"lang": "es", "value": "Los iframes de la sandbox en p\u00e1ginas web podr\u00edan permitir descargas al dispositivo, eludiendo las restricciones de espacio aislado esperadas declaradas en la p\u00e1gina principal. Esta vulnerabilidad afecta a Firefox para iOS < 141."}], "lastModified": "2026-04-13T15:17:01.840", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*", "vulnerable": true, "matchCriteriaId": "49B2D080-DBF5-4711-8563-B24D688F8B31", "versionEndExcluding": "141.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}