CVE-2016-5268

Mozilla: Spoofing attack through text injection into internal error pages (MFSA 2016-83)

Loading…

Severity

Moderate

Red Hat Product Security

4.3

CVSS 3.0

Review impact separately from score.

Published · August 2, 2016

Updated · November 21, 2025

Description

Mozilla Firefox before 48.0 does not properly set the LINKABLE and URI_SAFE_FOR_UNTRUSTED_CONTENT flags of about: URLs that are used for error pages, which makes it easier for remote attackers to conduct spoofing attacks via a crafted URL, as demonstrated by misleading text after an about:neterror?d= substring.

Statement

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.

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 · 4.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS 2.0 · 4.3
AV:N/AC:M/Au:N/C:P/I:N/A:N

CWE not specified