CVE-2018-12370

High

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.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Mozilla Firefox

PublishedOct 18, 2018

First seenOct 18, 2018

How to fix

Update

mozilla firefox61.0 or later

Vendor advisories

security.gentoo.org/glsa/201810-01
usn.ubuntu.com/3705-1/

Affected products

Product	Affected versions	Fixed in
mozilla firefox	v < 61.0	61.0
canonical ubuntu_linux	14.04, 16.04, 17.10, 18.04	—

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