CVE-2025-13015

firefox: thunderbird: Spoofing issue in Firefox

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Severity

Low

Red Hat Product Security

3.4

CVSS 3.1

Review impact separately from score.

Published · November 12, 2025

Updated · June 30, 2026

Description

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Spoofing issue in Firefox.

Statement

Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 3.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

CWE-290 · Authentication Bypass by Spoofing