Description
A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/103386
Issue Tracking, Permissions Required x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1419166
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
0.0086
EPSS Percentile
75.2%
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-20
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