CVE-2025-11720

HIGH EPSS 15.5%
Published Oct 14, 20258mo ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
High
Find Similar
Published Oct 14, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
15.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-451

Affected Products 2

VendorProductVersionRange
mozillafirefox* <144.0
googleandroid*any

References 3

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1979534
    Issue TrackingPermissions Required
  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1984370
    Issue TrackingPermissions Required
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-81/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.