CVE-2025-27426

Firefox Mobile iOS Full Address Bar Spoof Using Server-Side Redirect to internal error page

CVSS 5.4 MEDIUMEPSS 0.2%CWE-601

Malicious websites utilizing a server-side redirect to an internal error page could result in a spoofed website URL. This vulnerability was fixed in Firefox for iOS 136.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected products

Mozilla · Firefox for iOS

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1933079 https://www.mozilla.org/security/advisories/mfsa2025-13/