Improper Restriction of Rendered UI Layers or Frames in Firefox for Android - CVE-2025-1939
Published: March 5, 2025
Vulnerability identifier: #VU105321
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-1939
CWE-ID: CWE-1021
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Firefox for Android
Firefox for Android
Detailed vulnerability description
The vulnerability allows a remote attacker to perform tapjacking attacks.
The vulnerability exists due to the way Android tabs load web pages using the Custom Tabs feature. This feature supports a transition animation that could have been used to trick a user into granting sensitive permissions by hiding what the user was actually clicking.
How to mitigate CVE-2025-1939
Install updates from vendor's website.