CVE-2019-11723

Description

A vulnerability exists during the installation of add-ons where the initial fetch ignored the origin attributes of the browsing context. This could leak cookies in private browsing mode or across different "containers" for people who use the Firefox Multi-Account Containers Web Extension. This vulnerability affects Firefox < 68.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2019-21/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1528335 issue tracking permissions required vendor advisory
https://security.gentoo.org/glsa/201908-12 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html mailing list third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-11723?
CVE-2019-11723 has been scored as a high severity vulnerability.
How to fix CVE-2019-11723?
To fix CVE-2019-11723, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11723 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-11723 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-11723?
CVE-2019-11723 affects Mozilla Firefox.
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