CVE-2025-11720_CVE-2025-11720

8.1 / 10

HIGH

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

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 affects Firefox < 144.

Basic Information

ID CVE-2025-11720

Source mozilla

Published Oct 14, 2025 at 12:27

Modified Oct 15, 2025 at 13:19

Affected Product

Vendor Mozilla

Product Firefox

Version unspecified

Affected Versions Mozilla Firefox unspecified

CWE Classification

CWE-451

References

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    "lastseen": "",
    "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 affects Firefox < 144.",
    "published": "2025-10-14T12:27:38.204Z",
    "modified": "2025-10-15T13:19:42.977Z",
    "type": "cve",
    "title": "CVE-2025-11720",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=1979534\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=1984370\nhttps://www.mozilla.org/security/advisories/mfsa2025-81/",
    "id": "CVE-2025-11720",
    "bulletinFamily": "",
    "cwe": [
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    "sourceData": "Mozilla Firefox unspecified",
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    "cvss": {
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        "version": "3.1"
    },
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        "baseSeverity": "",
        "attackVector": "",
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Firefox",
    "version": "unspecified",
    "vendor": "Mozilla",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_score": 0
}