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CVE-2025-5020— Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses

Quick assessment

Affected
Mozilla Firefox for iOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox for iOS 139之前版本存在安全漏洞，该漏洞源于处理恶意URL时可能伪造网站地址。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-5020

Vulnerability Information
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Vulnerability Title
Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses
Source: CVE Program / CVE List V5
Vulnerability 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 was fixed in Firefox for iOS 139.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox for iOS 139之前版本存在安全漏洞，该漏洞源于处理恶意URL时可能伪造网站地址。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Firefox for iOS 139 ~ * -

II. Public POCs for CVE-2025-5020

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III. Intelligence Information for CVE-2025-5020

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IV. Related Vulnerabilities

Same product: Firefox for iOS
Same vendor: Mozilla

V. Comments for CVE-2025-5020

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