Name: CVE-2025-5020: Improper Authorization in Handler for Custom URL Scheme
Creator: Rapid7
Published: 2025-05-21T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2025-5020, CWE-939, CVSS 4.3, EPSS 0.00181

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 was fixed in Firefox for iOS 139.

CVSS Details

CVSS 3.1 Base Score: 4.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Ubuntu	—	No solution exists	Jun 26, 2025	May 21, 2025

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CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence