CVE-2025-11720

HIGH

Firefox < 144.0 - User Interface Misrepresentation of Critical Information in Android Custom Tab

Title source: llm
STIX 2.1

Description

The Firefox and Firefox Focus UI for the Android custom tab feature only showed the "site" that was loaded, not the full hostname. User supplied content hosted on a subdomain of a site could have been used to fool a user into thinking it was content from a different subdomain of that site. This vulnerability was fixed in Firefox 144.

References (3)

Core 3
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1979534
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1984370

Scores

CVSS v3 8.1
EPSS 0.0024
EPSS Percentile 15.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-451
Status published
Products (2)
mozilla/firefox < 144.0
Mozilla/Firefox 144
Published Oct 14, 2025
Tracked Since Feb 18, 2026