CVE-2018-5115

Description

If an HTTP authentication prompt is triggered by a background network request from a page or extension, it is displayed over the currently loaded foreground page. Although the prompt contains the real domain making the request, this can result in user confusion about the originating site of the authentication request and may cause users to mistakenly send private credential information to a third party site. This vulnerability affects Firefox < 58.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.55% 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 third party advisory vdb entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1409449 issue tracking permissions required
https://usn.ubuntu.com/3544-1/ third party advisory vendor advisory
http://www.securityfocus.com/bid/102786 third party advisory vdb entry
https://www.mozilla.org/security/advisories/mfsa2018-02/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5115?
CVE-2018-5115 has been scored as a high severity vulnerability.
How to fix CVE-2018-5115?
To fix CVE-2018-5115, 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-2018-5115 being actively exploited in the wild?
It is possible that CVE-2018-5115 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-2018-5115?
CVE-2018-5115 affects Mozilla Firefox.
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