CVE-2025-5020

Description

Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client This vulnerability affects Firefox for iOS < 139.

Reserved 2025-05-21 | Published 2025-05-21 | Updated 2025-05-21 | Assigner mozilla

Problem types

Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses

Product status

Any version before 139
affected

Credits

James Lee

References

bugzilla.mozilla.org/show_bug.cgi?id=1951558

www.mozilla.org/security/advisories/mfsa2025-39/

cve.org (CVE-2025-5020)

nvd.nist.gov (CVE-2025-5020)

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