CVE-2025-54143 | Mozilla Firefox up to 140 on iOS iFrame access control
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 manipulation can lead to improper access controls.
This vulnerability appears as CVE-2025-54143. The attack may be performed from a remote location. There is no available exploit.
Upgrading the affected component is recommended.