CVE-2025-8364

Address bar spoofing using an blob URI on Firefox for Android

Published Aug 19, 2025 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack.
*Note: This issue only affected Android operating systems. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 141.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-25231 A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 141.
History
Type Values Removed Values Added
Description A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 141. A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 141.
Title Address bar spoofing using an blob URI on Firefox for Android
Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Google
Google android
Mozilla
Mozilla firefox
Vendors & Products Google
Google android
Mozilla
Mozilla firefox
Type Values Removed Values Added
Weaknesses CWE-451
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 141.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Apr 13, 2026, 2:31 PM
Reserved
Jul 30, 2025, 4:10 PM
Status
Modified
Published
Aug 19, 2025, 9:15 PM
Modified
Oct 5, 2026, 3:10 PM