{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-11720", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2025-10-13T19:50:22.446Z", "datePublished": "2025-10-14T12:27:38.204Z", "dateUpdated": "2025-10-14T12:27:38.204Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "144", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "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 affects Firefox < 144.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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 affects Firefox < 144."}]}], "problemTypes": [{"descriptions": [{"description": "Spoofing risk in Android custom tabs", "lang": "en", "type": "text"}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1979534"}, {"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1984370"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-81/"}], "credits": [{"lang": "en", "value": "Michel Le Bihan"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2025-10-14T12:27:38.204Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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 affects Firefox < 144."}], "id": "CVE-2025-11720", "lastModified": "2025-10-14T19:36:29.240", "metrics": {}, "published": "2025-10-14T13:15:38.400", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1979534"}, {"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1984370"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2025-81/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Undergoing Analysis"}

{}

{}