CVE-2026-16397 | Clickjacking issue in the WebExtensions component in Firefox… | CVSS 6.5 MEDIUM

Description

Clickjacking issue in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 153.

CVE ID: CVE-2026-16397
State: PUBLISHED
Assigner: mozilla
Reserved: 2026-07-20 21:57 UTC
Published: 2026-07-21 12:38 UTC
Last updated: 2026-07-21 19:29 UTC
Primary CWE: CWE-1021
CWE-1021 Improper Restriction of Rendered UI Layers or Frame…
Vendor / Product: Mozilla / Firefox
Sources: cve.org · NVD

6.5 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Affected products (1)

Vendor	Product	Platform	Versions
Mozilla	Firefox	—	153 ≤ *

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

References (2)