CVE-2017-5393

Description

The "mozAddonManager" allows for the installation of extensions from the CDN for addons.mozilla.org, a publicly accessible site. This could allow malicious extensions to install additional extensions from the CDN in combination with an XSS attack on Mozilla AMO sites. This vulnerability affects Firefox < 51.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.54%
Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1309282 permissions required
http://www.securitytracker.com/id/1037693 third party advisory vdb entry
https://www.mozilla.org/security/advisories/mfsa2017-01/ vendor advisory
http://www.securityfocus.com/bid/95763 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-5393?
CVE-2017-5393 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5393?
To fix CVE-2017-5393, 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-2017-5393 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-5393 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-2017-5393?
CVE-2017-5393 affects Mozilla Firefox.
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