Improper input validation in Mozilla Firefox

CVE-2017-7816

WebExtensions could use popups and panels in the extension UI to load an "about:" privileged URL, violating security checks that disallow this behavior. This vulnerability affects Firefox < 56.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.013 (67.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-7816?
CVE-2017-7816 is a medium-severity vulnerability in Mozilla Firefox, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2018-06-11.
How severe is CVE-2017-7816?
Medium severity. CVSS v3 base score is 5.3 out of 10.