CVE-2025-14327

Spoofing issue in the Downloads Panel component

State: Published
Severity: 7.5 High
Published: Dec 9, 2025
Updated: Apr 13, 2026
Reserved: Dec 9, 2025

Description

Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and Thunderbird 140.7.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-290 Authentication Bypass by Spoofing

Affected Products

Product	Versions
FirefoxMozilla	140.7 through 140.*Not affected 146 and laterNot affected
ThunderbirdMozilla	140.7 through 140.*Not affected 146 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1970743
https://www.mozilla.org/security/advisories/mfsa2025-92/
https://www.mozilla.org/security/advisories/mfsa2025-95/
https://www.mozilla.org/security/advisories/mfsa2026-03/
https://www.mozilla.org/security/advisories/mfsa2026-05/

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