CVE-2016-5291

Mozilla: Same-origin policy violation using local HTML file and saved shortcut file (MFSA 2016-89, MFSA 2016-90)

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Severity

Moderate

Red Hat Product Security

6.1

CVSS 3.0

Review impact separately from score.

Published · November 16, 2016

Updated · November 26, 2025

Description

A same-origin policy bypass with local shortcut files to load arbitrary local content from disk. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

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 · 6.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

CWE not specified