CVE-2018-5164

Description

Content Security Policy (CSP) is not applied correctly to all parts of multipart content sent with the "multipart/x-mixed-replace" MIME type. This could allow for script to run where CSP should block it, allowing for cross-site scripting (XSS) and other attacks. This vulnerability affects Firefox < 60.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.83% Top 30%
Vendor Advisory ubuntu.com Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2018-11/ vendor advisory
http://www.securitytracker.com/id/1040896 vdb entry third party advisory
https://usn.ubuntu.com/3645-1/ third party advisory vendor advisory
http://www.securityfocus.com/bid/104139 vdb entry third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1416045 issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2018-5164?
CVE-2018-5164 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5164?
To fix CVE-2018-5164, 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-2018-5164 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-5164 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5164?
CVE-2018-5164 affects Mozilla Firefox.
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