Mozilla: >> Firefox Focus >> 121.0 Security Vulnerabilities
Opening links via the contextual menu in Focus iOS for certain URL schemes would fail to load but would not refresh the toolbar correctly, allowing attackers to spoof websites if users were coerced into opening a link explicitly through a long-press This vulnerability affects Focus for iOS < 143.0.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-09-16
Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An attacker within Bluetooth range could have used this to trick the user into using their passkey to log the attacker's computer into the target account. This vulnerability affects Firefox for iOS < 142 and Focus for iOS < 142.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-08-19
Focus for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline, potentially allowing for XSS attacks This vulnerability affects Focus for iOS < 142.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-08-19
Dragging JavaScript links to the URL bar in Focus for iOS could be utilized to run malicious scripts, potentially resulting in XSS attacks This vulnerability affects Focus for iOS < 142.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-08-19
Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different webpage This vulnerability affects Focus < 138.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-04-30
Focus was incorrectly allowing internal links to utilize the app scheme used for deeplinking, which could result in links potentially circumventing some URL safety checks This vulnerability affects Focus for iOS < 132.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-10-29
Websites could utilize Javascript links to spoof URL addresses in the Focus navigation bar This vulnerability affects Focus for iOS < 130.
CVSS Score
4.7
EPSS Score
0.001
Published
2024-09-03
The file scheme of URLs would be hidden, resulting in potential spoofing of a website's address in the location bar This vulnerability affects Focus for iOS < 126.
CVSS Score
4.4
EPSS Score
0.002
Published
2024-05-17
An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme and a timeout race condition. This vulnerability affects Focus for iOS < 122.
CVSS Score
8.1
EPSS Score
0.003
Published
2024-02-22
Utilizing a 302 redirect, an attacker could have conducted a Universal Cross-Site Scripting (UXSS) on a victim website, if the victim had a link to the attacker's website. This vulnerability affects Focus for iOS < 123.
CVSS Score
6.1
EPSS Score
0.007
Published
2024-02-22
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