CVE-2024-9398

firefox: thunderbird: External protocol handlers could be enumerated via popups

Loading…

Severity

Low

Red Hat Product Security

4.3

CVSS 3.1

Review impact separately from score.

Published · October 2, 2024

Updated · April 23, 2026

Description

The Mozilla Foundation's Security Advisory: By checking the result of calls to window.open with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed.

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 · 4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CWE-203 · Observable Discrepancy