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 affects Firefox < 144.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1979534 | Issue Tracking Permissions Required |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1984370 | Issue Tracking Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-81/ | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
15 Oct 2025, 18:10
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Mozilla firefox
Mozilla Google android |
|
| CPE | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* cpe:2.3:o:google:android:-:*:*:*:*:*:*:* |
|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1979534 - Issue Tracking, Permissions Required | |
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1984370 - Issue Tracking, Permissions Required | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-81/ - Vendor Advisory |
15 Oct 2025, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.1 |
| CWE | CWE-451 |
14 Oct 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-10-14 13:15
Updated : 2025-10-15 18:10
NVD link : CVE-2025-11720
Mitre link : CVE-2025-11720
CVE.ORG link : CVE-2025-11720
JSON object : View
Products Affected
- android
mozilla
- firefox
CWE
CWE-451
User Interface (UI) Misrepresentation of Critical Information