Mozilla: >> Firefox >> 17.0 Security Vulnerabilities
In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing the origin. This vulnerability was fixed in Firefox 141.
CVSS Score
5.3
EPSS Score
0.001
Published
2025-08-19
Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability was fixed in Firefox 141.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-08-19
A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack.
*Note: This issue only affected Android operating systems. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 141.
CVSS Score
4.3
EPSS Score
0.001
Published
2025-08-19
Malicious scripts could bypass the popup blocker to spam new tabs, potentially resulting in denial of service attacks. This vulnerability was fixed in Firefox for iOS 142.
CVSS Score
7.5
EPSS Score
0.001
Published
2025-08-19
Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks. This vulnerability was fixed in Firefox for iOS 142.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-08-19
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 was fixed in Firefox for iOS 142 and Focus for iOS 142.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-08-19
Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page. This vulnerability was fixed in Firefox for iOS 141.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-08-19
The URL scheme used by Firefox to facilitate searching of text queries could incorrectly allow attackers to open arbitrary website URLs or internal pages if a user was tricked into clicking a link. This vulnerability was fixed in Firefox for iOS 141.
CVSS Score
5.4
EPSS Score
0.0
Published
2025-08-19
The QR scanner could allow arbitrary websites to be opened if a user was tricked into scanning a malicious link that leveraged Firefox's open-text URL scheme. This vulnerability was fixed in Firefox for iOS 141.
CVSS Score
9.1
EPSS Score
0.001
Published
2025-08-19
Malicious scripts utilizing repetitive JavaScript alerts could prevent client user interaction in some scenarios and allow for denial of service attacks. This vulnerability was fixed in Firefox for iOS 142.
CVSS Score
6.5
EPSS Score
0.001
Published
2025-08-19