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.
References (3)
Core 3
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1909609
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1969937
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-56/
Scores
CVSS v3
4.3
EPSS
0.0021
EPSS Percentile
10.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-451
Status
published
Products (2)
mozilla/firefox
< 141.0
Mozilla/Firefox
141
Published
Aug 19, 2025
Tracked Since
Feb 18, 2026