CVSS 3.1 Score 4.3 of 10 (medium)


Published Oct 25, 2023
Updated: Jan 7, 2024


CVE-2023-5729 is a cyber vulnerability that affects Firefox versions prior to 119. This vulnerability allows a malicious website to enter fullscreen mode while simultaneously triggering a WebAuthn prompt, potentially obscuring the fullscreen notification and enabling a spoofing attack. The risk score for this vulnerability is 5 out of 10. The base severity is classified as MEDIUM with a base score of 4.3. The exploitability score is 2.8, indicating a medium level of difficulty in exploiting the vulnerability. It requires user interaction and has a low impact on integrity and no impact on confidentiality. The attack vector is through the network, and no privileges are required for exploitation.

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