CVE-2023-23604

Description

A duplicate <code>SystemPrincipal</code> object could be created when parsing a non-system html document via <code>DOMParser::ParseFromSafeString</code>. This could have lead to bypassing web security checks. This vulnerability affects Firefox < 109.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2023-01/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1802346 vendor advisory issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2023-23604?
CVE-2023-23604 has been scored as a medium severity vulnerability.
How to fix CVE-2023-23604?
To fix CVE-2023-23604, 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-2023-23604 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-23604 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-2023-23604?
CVE-2023-23604 affects Mozilla Firefox.
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