CVE-2023-5729

—

CVSS 3.1

4.3 medium

EPSS

<1%p46

Published

Oct 25, 2023 (Oct 25, 2023)

Modified

Jun 17, 2026

Description

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been leveraged in a spoofing attack. This vulnerability affects Firefox < 119.

Vendors: mozilla
Products: firefox
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.6%)

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