CVE-2025-8042

Description

Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability affects Firefox < 141.

PUBLISHED Reserved 2025-07-22 | Published 2025-08-19 | Updated 2025-08-20 | Assigner mozilla

Problem types

Sandboxed iframe could start downloads

Product status

Credits

Axel Chong (@Haxatron)

References

bugzilla.mozilla.org/show_bug.cgi?id=1791322

www.mozilla.org/security/advisories/mfsa2025-56/

cve.org (CVE-2025-8042)

nvd.nist.gov (CVE-2025-8042)

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