CVE-2018-5170

Mozilla: Filename spoofing for external attachments

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Severity

Moderate

Red Hat Product Security

4.2

CVSS 3.0

Review impact separately from score.

Published · May 18, 2018

Updated · November 22, 2025

Description

It is possible to spoof the filename of an attachment and display an arbitrary attachment name. This could lead to a user opening a remote attachment which is a different file type than expected. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.

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 3.0 · 4.2
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

CWE-20 · Improper Input Validation