CVE-2017-5453

Description

A mechanism to inject static HTML into the RSS reader preview page due to a failure to escape characters sent as URL parameters for a feed's "TITLE" element. This vulnerability allows for spoofing but no scripted content can be run. This vulnerability affects Firefox < 53.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.67% Top 30%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1321247 issue tracking vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-10/ vendor advisory
http://www.securityfocus.com/bid/97940 vdb entry third party advisory
http://www.securitytracker.com/id/1038320 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-5453?
CVE-2017-5453 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5453?
To fix CVE-2017-5453, 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-2017-5453 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-5453 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-2017-5453?
CVE-2017-5453 affects Mozilla Firefox.
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