CVE-2025-11720 — Spoofing risk in Android custom tabs
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…
Published: 2025-10-14 · CVSS: 8.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7