CVE-2019-11741

Description

A compromised sandboxed content process can perform a Universal Cross-site Scripting (UXSS) attack on content from any site it can cause to be loaded in the same process. Because addons.mozilla.org and accounts.firefox.com have close ties to the Firefox product, malicious manipulation of these sites within the browser can potentially be used to modify a user's Firefox configuration. These two sites will now be isolated into their own process and not allowed to be loaded in a standard content process. This vulnerability affects Firefox < 69.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1539595 issue tracking permissions required vendor advisory
https://www.mozilla.org/security/advisories/mfsa2019-25/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-11741?
CVE-2019-11741 has been scored as a medium severity vulnerability.
How to fix CVE-2019-11741?
To fix CVE-2019-11741, 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-2019-11741 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-11741 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-2019-11741?
CVE-2019-11741 affects Mozilla Firefox.
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