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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 2024 there have been 2 vulnerabilities in Mozilla Firefox Focus with an average score of 6.8 out of ten. Last year Firefox Focus had 4 security vulnerabilities published. At the current rates, it appears that the number of vulnerabilities last year and this year may equal out. Last year, the average CVE base score was greater by 1.18

Year Vulnerabilities Average Score
2024 2 6.80
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

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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