CVE-2025-8364

Address bar spoofing using an blob URI on Firefox for Android

State: Published
Severity: 4.3 Medium
Published: Aug 19, 2025
Updated: Apr 13, 2026
Reserved: Jul 30, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N	CISA-ADP

Weaknesses

CWE-451 User Interface (UI) Misrepresentation of Critical Information

Affected Products

Product	Versions
FirefoxMozilla	141 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1909609
https://bugzilla.mozilla.org/show_bug.cgi?id=1969937
https://www.mozilla.org/security/advisories/mfsa2025-56/

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