CVE-2025-27426

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

State: Published
Severity: 5.4 Medium
Published: Mar 4, 2025
Updated: Jun 4, 2026
Reserved: Feb 24, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N	CISA-ADP

Weaknesses

CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

Product	Versions
Firefox for iOSMozilla	136 and laterNot affected

References

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

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