CVE-2025-14331

Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2000218	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-92/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-93/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-94/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-95/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-96/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox:::::esr:::*
	cpe:2.3:a:mozilla:firefox:::::-:::*
	cpe:2.3:a:mozilla:firefox:::::esr:::*
	cpe:2.3:a:mozilla:thunderbird:::::esr:::*
	cpe:2.3:a:mozilla:thunderbird:::::-:::*

History

05 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary	(es) Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, y Thunderbird < 140.6.	(es) Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox menor que 146, Firefox ESR menor que 115.31, Firefox ESR menor que 140.6, Thunderbird menor que 146, y Thunderbird menor que 140.6.

30 Sep 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, y Thunderbird < 140.6.

Information

Published : 2025-12-09 16:17

Updated : 2026-10-07 20:10

NVD link : CVE-2025-14331

Mitre link : CVE-2025-14331

CVE.ORG link : CVE-2025-14331

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-346

Origin Validation Error

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