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CVE-2025-11720
Published: Oct 14, 2025
Modified: Apr 13, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
Mozilla | Firefox | unaffected 144 - <= * |
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