CVE-2017-7812

Public Exploit

Description

If web content on a page is dragged onto portions of the browser UI, such as the tab bar, links can be opened that otherwise would not be allowed to open. This can allow malicious web content to open a locally stored file through "file:" URLs. This vulnerability affects Firefox < 56.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.31%
Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1039465 vdb entry third party advisory
https://www.mozilla.org/security/advisories/mfsa2017-21/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1379842 issue tracking exploit
http://www.securityfocus.com/bid/101057 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-7812?
CVE-2017-7812 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7812?
To fix CVE-2017-7812, 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-2017-7812 being actively exploited in the wild?
It is possible that CVE-2017-7812 is being exploited or will be exploited in a near future based on public information. 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-2017-7812?
CVE-2017-7812 affects Mozilla Firefox.
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