CVE-2025-54143 | Mozilla Firefox up to 140 on iOS iFrame access control (EUVD-2025-25230)
A vulnerability described as critical has been identified in Mozilla Firefox up to 140 on iOS. The impacted element is an unknown function of the component iFrame Handler. Executing a manipulation can lead to improper access controls.
This vulnerability appears as CVE-2025-54143. The attack may be performed from remote. There is no available exploit.
Upgrading the affected component is recommended.