CVE-2025-8364

MEDIUM 4.3

Address bar spoofing using an blob URI on Firefox for Android

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

10th

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.

Vendor	mozilla
Product	firefox
Ecosystems	Browser JavaScript
Industries	Technology
Published	Aug 19, 2025
Last Updated	Apr 13, 2026

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Affected Versions

Mozilla / Firefox

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Rifa'i Rejal Maynando and Ameen Basha M K