CVE-2018-5112

Description

Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances. This could allow the development tools panel for the extension to load a URL that it should not be able to access, including potentially privileged pages. This vulnerability affects Firefox < 58.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.54% Top 20%
Vendor Advisory ubuntu.com Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1040270 vdb entry third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1425224 issue tracking permissions required
https://usn.ubuntu.com/3544-1/ third party advisory vendor advisory
http://www.securityfocus.com/bid/102786 vdb entry third party advisory
https://www.mozilla.org/security/advisories/mfsa2018-02/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5112?
CVE-2018-5112 has been scored as a high severity vulnerability.
How to fix CVE-2018-5112?
To fix CVE-2018-5112, 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-2018-5112 being actively exploited in the wild?
It is possible that CVE-2018-5112 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5112?
CVE-2018-5112 affects Mozilla Firefox.
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