CVE-2026-12323

Spoofing issue in the DOM: Core & HTML component

Medium · published June 16, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
5.8
In the wild
Unconfirmed
What it is

Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00168 · 5.8th percentile
Published
2026-06-16T11:52Z
EPSS history
Timeline
  • 16 JUN 11:52Z
    Spoofing issue in the DOM: Core & HTML component
    cvelistv5