CVE-2023-25730

Description

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2023-06/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-05/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1794622 vendor advisory issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2023-25730?
CVE-2023-25730 has been scored as a medium severity vulnerability.
How to fix CVE-2023-25730?
To fix CVE-2023-25730, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-25730 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-25730 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-25730?
CVE-2023-25730 affects Mozilla Firefox, Mozilla Thunderbird, Mozilla Firefox ESR.
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