CVE-2017-7798

Description

The Developer Tools feature suffers from a XUL injection vulnerability due to improper sanitization of the web page source code. In the worst case, this could allow arbitrary code execution when opening a malicious page with the style editor tool. This vulnerability affects Firefox ESR < 52.3 and Firefox < 55.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.92% Top 15%
Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2017-19/ vendor advisory
http://www.securityfocus.com/bid/100198 third party advisory vdb entry
https://www.mozilla.org/security/advisories/mfsa2017-18/ vendor advisory
https://access.redhat.com/errata/RHSA-2017:2456 third party advisory vendor advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1371586%2C1372112 vendor advisory issue tracking
http://www.securitytracker.com/id/1039124 third party advisory vdb entry
https://www.debian.org/security/2017/dsa-3928 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7798?
CVE-2017-7798 has been scored as a high severity vulnerability.
How to fix CVE-2017-7798?
To fix CVE-2017-7798, 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-2017-7798 being actively exploited in the wild?
It is possible that CVE-2017-7798 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7798?
CVE-2017-7798 affects Mozilla Firefox ESR, Mozilla Firefox.
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