CVE-2025-11720
Spoofing risk in Android custom tabs
- State
- Published
- Severity
- 8.1 High
- Published
- Oct 14, 2025
- Updated
- Apr 13, 2026
- Reserved
- Oct 13, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N | CISA-ADP |
Weaknesses
- CWE-451 User Interface (UI) Misrepresentation of Critical Information
Affected Products
| Product | Versions |
|---|---|
FirefoxMozilla |
|
References
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