Mozilla Firefox Focus
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Recent Mozilla Firefox Focus Security Advisories
| Advisory | Title | Published |
|---|---|---|
| mfsa2023-44 | Security Vulnerability fixed in Firefox 118.0.1, Firefox ESR 115.3.1, Firefox for Android 118.1.0, and Firefox Focus for Android 118.1.0. mfsa2023-44 | September 28, 2023 |
By the Year
In 2025 there have been 0 vulnerabilities in Mozilla Firefox Focus. Last year, in 2024 Firefox Focus had 6 security vulnerabilities published. Right now, Firefox Focus is on track to have less security vulnerabilities in 2025 than it did last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2025 | 0 | 0.00 |
| 2024 | 6 | 6.50 |
| 2023 | 4 | 7.98 |
| 2022 | 2 | 9.20 |
| 2021 | 0 | 0.00 |
| 2020 | 0 | 0.00 |
| 2019 | 0 | 0.00 |
| 2018 | 0 | 0.00 |
It may take a day or so for new Firefox Focus vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Mozilla Firefox Focus Security Vulnerabilities
Focus was incorrectly
CVE-2024-10474
6.5 - Medium
- October 29, 2024
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.
Websites could utilize Javascript links to spoof URL addresses in the Focus navigation bar This vulnerability affects Focus for iOS < 130.
CVE-2024-8399
4.7 - Medium
- September 03, 2024
Websites could utilize Javascript links to spoof URL addresses in the Focus navigation bar This vulnerability affects Focus for iOS < 130.
Utilizing a 302 redirect
CVE-2024-26284
6.1 - Medium
- February 22, 2024
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.
XSS
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
CVE-2024-1563
8.1 - High
- February 22, 2024
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.
TOCTTOU
An attacker could execute unauthorized script on a legitimate site through UXSS using window.open() by opening a javascript URI leading to unauthorized actions within the user's loaded webpage
CVE-2024-0606
6.1 - Medium
- January 22, 2024
An attacker could execute unauthorized script on a legitimate site through UXSS using window.open() by opening a javascript URI leading to unauthorized actions within the user's loaded webpage. This vulnerability affects Focus for iOS < 122.
XSS
Using a javascript: URI with a setTimeout race condition, an attacker can execute unauthorized scripts on top origin sites in urlbar
CVE-2024-0605
7.5 - High
- January 22, 2024
Using a javascript: URI with a setTimeout race condition, an attacker can execute unauthorized scripts on top origin sites in urlbar. This bypasses security measures, potentially leading to arbitrary code execution or unauthorized actions within the user's loaded webpage. This vulnerability affects Focus for iOS < 122.
Race Condition
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1
CVE-2023-5217
8.8 - High
- September 28, 2023
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Memory Corruption
When recording the screen while in Private Browsing on Firefox for Android the address bar and keyboard were not hidden
CVE-2023-29546
6.5 - Medium
- June 19, 2023
When recording the screen while in Private Browsing on Firefox for Android the address bar and keyboard were not hidden, potentially leaking sensitive information. *This bug only affects Firefox for Android. Other operating systems are unaffected.* This vulnerability affects Firefox for Android < 112 and Focus for Android < 112.
Different techniques existed to obscure the fullscreen notification in Firefox and Focus for Android
CVE-2023-29534
9.1 - Critical
- June 19, 2023
Different techniques existed to obscure the fullscreen notification in Firefox and Focus for Android. These could have led to potential user confusion and spoofing attacks. *This bug only affects Firefox and Focus for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox for Android < 112 and Focus for Android < 112.
A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome
CVE-2023-25743
7.5 - High
- June 02, 2023
A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome.<br>*This bug only affects Firefox Focus. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 110 and Firefox ESR < 102.8.
Authentication Bypass by Spoofing
Removing an XSLT parameter during processing could have lead to an exploitable use-after-free
CVE-2022-26485
8.8 - High
- December 22, 2022
Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.
Dangling pointer
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape
CVE-2022-26486
9.6 - Critical
- December 22, 2022
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.
Dangling pointer
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