CVE-2026-92030

Published: Sep 15, 2026Modified: Oct 6, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.5

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Affected (6)

Products: Mozilla: Firefox, Thunderbird

Mozilla

2 products

Firefox

Thunderbird

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Mozilla Firefox	version < 140.16.0
Mozilla Firefox	141.0 ≤ version < 153.3.0
Mozilla Firefox	154.0.0 ≤ version < 156.0.0
Mozilla Thunderbird	version < 140.16.0
Mozilla Thunderbird	141.0 ≤ version < 153.3.0
Mozilla Thunderbird	154.0 ≤ version < 156.0