CVE-2024-11692 is a moderate severity vulnerability in Firefox and Thunderbird where an attacker could cause a select dropdown list to appear over another tab. This behavior could lead to user confusion and potential spoofing attacks. The issue affects Firefox versions prior to 133, Firefox ESR prior to 128.5, Thunderbird prior to 133, and Thunderbird ESR prior to 128.5. The vulnerability has been fixed in Firefox 133 and Firefox ESR 128.5.