Description
In Reader View SameSite cookie protections are not checked on exiting. This allows for a payload to be triggered when Reader View is exited if loaded by a malicious site while Reader mode is active, bypassing CSRF protections. This vulnerability affects Firefox < 61.
References (5)
Core 5
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201810-01
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-15/
Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1456652
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1041193
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3705-1/
Scores
CVSS v3
8.8
EPSS
0.0027
EPSS Percentile
50.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-352
Status
published
Products (5)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
17.10
canonical/ubuntu_linux
18.04
mozilla/firefox
< 61.0
Published
Oct 18, 2018
Tracked Since
Feb 18, 2026