CVE-2018-5137

HIGH

Firefox < 59.0 - Exposure of Sensitive Information via Legacy Extension Resource Loading

Title source: llm

Description

A legacy extension's non-contentaccessible, defined resources can be loaded by an arbitrary web page through script. This script does this by using a maliciously crafted path string to reference the resources. Note: this vulnerability does not affect WebExtensions. This vulnerability affects Firefox < 59.

References (5)

Core 5

Core References

Permissions Required x_refsource_confirm

https://bugzilla.mozilla.org/show_bug.cgi?id=1432870

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/103386

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1040514

Third Party Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/3596-1/

Vendor Advisory x_refsource_confirm

https://www.mozilla.org/security/advisories/mfsa2018-06/

Scores

CVSS v3 7.5

EPSS 0.0136

EPSS Percentile 80.4%

Attack Vector NETWORK

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

Details

CWE

CWE-200

Status published

Products (4)

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 16.04

canonical/ubuntu_linux 17.10

mozilla/firefox < 59.0

Published Jun 11, 2018

Tracked Since Feb 18, 2026