CVE-2025-5020

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-5020
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.

4.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1951558 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-39/ Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*
History

13 Jun 2025, 18:55

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1951558 - () https://bugzilla.mozilla.org/show_bug.cgi?id=1951558 - Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2025-39/ - () https://www.mozilla.org/security/advisories/mfsa2025-39/ - Vendor Advisory
Summary
  • (es) La apertura de URL manipuladas con fines maliciosos en Firefox desde otras aplicaciones como Safari podría haber permitido a los atacantes falsificar direcciones de sitios web si las URL utilizaban esquemas que no fueran HTTP utilizados internamente por el cliente Firefox iOS. Esta vulnerabilidad afecta a Firefox para iOS &lt; 139.
First Time Mozilla
Mozilla firefox
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*

21 May 2025, 19:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.3
CWE CWE-939

21 May 2025, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-21 18:15

Updated : 2025-06-13 18:55

NVD link : CVE-2025-5020

Mitre link : CVE-2025-5020

CVE.ORG link : CVE-2025-5020

JSON object : View

Products Affected

mozilla

  • firefox
CWE
CWE-939

Improper Authorization in Handler for Custom URL Scheme