Vulnerability · NVD

CVE-2025-11720

CVE-2025-11720, high severity (CVSS 8.1): 1 tracked app concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.1
Exploitation: -
Tracked apps: 1
Still exposed: 0

Published on 2025-10-14

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.

Attack vector : Network No privileges required

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Firefox Windows winget:Mozilla.Firefox

Affected <144.0 Fixed in 144.0 Latest tracked 157.0 patched

Observed affected builds (136)

143.0.4 143.0.3 143.0.1 143.0 142.0.1 142.0 141.0.3 141.0.2 141.0 140.0.4 140.0.2 140.0.1 140.0 139.0.4 139.0.1 139.0 138.0.4 138.0.3 138.0.1 138.0 137.0.2 137.0.1 137.0 136.0.4 136.0.3 136.0.2 136.0.1 136.0 135.0.1 135.0 +106 · see history

Vulnerable CPE configurations (1)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<144.0	cpe:2.3:a:mozilla:firefox::::::::

View on NVD ↗ Advisory · www.mozilla.org

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