CVE-2023-4053 (published 2023-08-01T14:59:54.291Z)
A website could have obscured the full screen 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 < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
Affected products: Vendor: Mozilla
Product: Firefox
Versions: unspecified