CVE-2023-4051

CVE-2023-4051 describes a vulnerability where Firefox, Firefox ESR, and Thunderbird versions prior to 116 and 115.2 respectively, could have allowed a malicious website to obscure full-screen notifications using the file open dialog. This could lead to user confusion and potential spoofing attacks. The vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on integrity, but no impact on confidentiality or availability. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.