CVE-2017-7798

high-risk
Published 2018-06-11

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.

Do I need to act?

~
3.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (16)

Affected Vendors

Debian Redhat Mozilla

References (14)

Third Party Advisory http://www.securityfocus.com/bid/100198
Third Party Advisory http://www.securitytracker.com/id/1039124
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2456
Issue Tracking https://bugzilla.mozilla.org/buglist.cgi?bug_id=1371586%2C1372112
Third Party Advisory https://www.debian.org/security/2017/dsa-3928
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-18/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-19/
Third Party Advisory http://www.securityfocus.com/bid/100198
Third Party Advisory http://www.securitytracker.com/id/1039124
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2456
Issue Tracking https://bugzilla.mozilla.org/buglist.cgi?bug_id=1371586%2C1372112
Third Party Advisory https://www.debian.org/security/2017/dsa-3928
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-18/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-19/
55
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 7/34 · Low
Exposure 18/34 · Moderate