Description
Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page. This vulnerability was fixed in Firefox for iOS 141.
References (2)
Core 2
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1912671
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-60/
Scores
CVSS v3
9.8
EPSS
0.0045
EPSS Percentile
35.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-693
Status
published
Products (2)
mozilla/firefox
< 141.0
Mozilla/Firefox for iOS
141
Published
Aug 19, 2025
Tracked Since
Feb 18, 2026