CVE-2026-12322 | Clickjacking issue in the Widget: Gtk component. This vulner… | CVSS 5.4 MEDIUM

Description

Clickjacking issue in the Widget: Gtk component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

CVE ID: CVE-2026-12322
State: PUBLISHED
Assigner: mozilla
Reserved: 2026-06-15 15:08 UTC
Published: 2026-06-16 11:52 UTC
Last updated: 2026-06-16 16:08 UTC
Primary CWE: CWE-1021
CWE-1021 Improper Restriction of Rendered UI Layers or Frame…
Vendor / Product: Mozilla / Firefox
Sources: cve.org · NVD

5.4 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Affected products (2)

Vendor	Product	Platform	Versions
Mozilla	Firefox	—	152 ≤ *
Mozilla	Thunderbird	—	152 ≤ *

Weakness (CWE)

CWE	Source	Description
CWE-1021	adp	CWE-1021 Improper Restriction of Rendered UI Layers or Frames

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.4	MEDIUM	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

References (3)