CVE-2023-25730mediumCWE-1021

CVE-2023-25730: medium-severity vulnerability in Mozilla Firefox

Published 02 Jun 2023 · Updated 10 Jan 2025

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.4epss 0.5%

A background script invoking <code>requestFullscreen</code> 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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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In the same product, most dangerous first.

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1794622 https://www.mozilla.org/security/advisories/mfsa2023-05/https://www.mozilla.org/security/advisories/mfsa2023-06/https://www.mozilla.org/security/advisories/mfsa2023-07/