Description
The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
References (12)
Core 12
Core References
Exploit, Issue Tracking, Patch x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1396320
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/101059
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-22/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039465
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2831
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2885
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-21/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-4014
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-23/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-3987
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201803-14
Scores
CVSS v3
5.4
EPSS
0.0142
EPSS Percentile
80.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (14)
debian/debian_linux
7.0
debian/debian_linux
8.0
debian/debian_linux
9.0
mozilla/firefox
< 52.4.0
mozilla/thunderbird
< 52.4.0
redhat/enterprise_linux_desktop
6.0
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
6.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_server_aus
7.4
... and 4 more
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026