CVE-2025-0237

firefox: thunderbird: WebChannel APIs susceptible to confused deputy attack

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Severity

Moderate

Red Hat Product Security

6.8

CVSS 3.1

Review impact separately from score.

Published · January 8, 2025

Updated · April 14, 2026

Description

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks.

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 · 6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CWE-441 · Unintended Proxy or Intermediary ('Confused Deputy')