CVE-2025-54143
Sandboxed iframes could allow local downloads despite sandbox restrictions
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.8EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
19 Aug 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Mozilla · Firefox for iOSWant to know if your infrastructure is exposed to this?
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