CVE-2023-25730

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 v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1794622	Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-05/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-06/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1794622	Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-05/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-06/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1794622	Issue Tracking Permissions Required Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Un script en segundo plano que invoca `requestFullscreen` y luego bloquea el hilo principal podría forzar al navegador a entrar en modo de pantalla completa indefinidamente, lo que podría resultar en confusión del usuario o ataques de suplantación de identidad. Esta vulnerabilidad afecta a Firefox menor que 110, Thunderbird anterior a 102.8 y Firefox ESR anterior a 102.8.

Information

Published : 2023-06-02 17:15

Updated : 2026-10-24 13:10

NVD link : CVE-2023-25730

Mitre link : CVE-2023-25730

CVE.ORG link : CVE-2023-25730

JSON object : View

Products Affected

mozilla

firefox
firefox_esr
thunderbird

CWE

NVD-CWE-noinfo CWE-1021

Improper Restriction of Rendered UI Layers or Frames

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