Q: What is CVE-2023-25730 — CVE-2023-25730?

A background script invoking requestFullscreen and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Q: What is the authoritative source for CVE-2023-25730?

CVE-2023-25730 (CVE-2023-25730) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

Question 1

What is CVE-2023-25730 — CVE-2023-25730?

Accepted Answer

A background script invoking requestFullscreen and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Question 2

What is the authoritative source for CVE-2023-25730?

Accepted Answer

CVE-2023-25730 (CVE-2023-25730) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVSS	5.4 ()
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Last modified	2026-10-24

CVE-2023-25730CVE-2023-25730

Description

Scoring