CVE-2025-54143

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-54143
Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page This vulnerability affects Firefox for iOS < 141.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1912671 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-60/ Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*
History

21 Aug 2025, 18:39

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1912671 - () https://bugzilla.mozilla.org/show_bug.cgi?id=1912671 - Issue Tracking, Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2025-60/ - () https://www.mozilla.org/security/advisories/mfsa2025-60/ - Vendor Advisory
First Time Mozilla firefox
Mozilla

20 Aug 2025, 16:15

Type Values Removed Values Added
CWE CWE-693
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8

20 Aug 2025, 14:40

Type Values Removed Values Added
Summary
  • (es) Los iframes de la sandbox en páginas web podrían permitir descargas al dispositivo, eludiendo las restricciones de espacio aislado esperadas declaradas en la página principal. Esta vulnerabilidad afecta a Firefox para iOS &lt; 141.

19 Aug 2025, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-08-19 21:15

Updated : 2025-08-21 18:39

NVD link : CVE-2025-54143

Mitre link : CVE-2025-54143

CVE.ORG link : CVE-2025-54143

JSON object : View

Products Affected

mozilla

  • firefox
CWE
CWE-693

Protection Mechanism Failure