CVE-2023-37207 Security feature bypass in Firefox
Attackers can obscure fullscreen notifications using external scheme URLs, enabling user confusion and spoofing attacks in Firefox and Thunderbird.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-37207?
CVE-2023-37207 is a medium-severity vulnerability in Debian Debian Linux, published on 5 Jul 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Weakness: CWE-470
Which versions are affected by CVE-2023-37207?
It affects 4 products.
Products include Debian Debian Linux, Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2023-37207?
Upgrade to a fixed version.
Is CVE-2023-37207 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37207 exists.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2023-37207, GHSA-jpg7-857p-mpqg, UBUNTU-CVE-2023-37207.