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.
Affected products
mozilla: firefox; mozilla: thunderbird
References5
- www.mozilla.org/security/advisories/mfsa2025-92/ Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-95/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1970743 Issue TrackingPermissions Required
- www.mozilla.org/security/advisories/mfsa2026-03/
- www.mozilla.org/security/advisories/mfsa2026-05/
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 35 · as of 11 November 2026
- CWE
- CWE-290
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