Improper input validation in Mozilla Firefox
CVE-2018-5167
The web console and JavaScript debugger do not sanitize all output that can be hyperlinked. Both will display "chrome:" links as active, clickable hyperlinks in their output. Web sites should not be able to directly link to internal chrome pages. Additionally, the JavaScript debugger will display "javascript:" links, which users could be tricked into clicking by malicious sites. This vulnerability affects Firefox < 60.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.014 (70.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Mozilla Firefox — versions unspecified
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@mozilla.org (Vendor Advisory, Permissions Required, x_refsource_CONFIRM, Issue Tracking)
Frequently asked questions
- What is CVE-2018-5167?
- CVE-2018-5167 is a medium-severity vulnerability in Mozilla Firefox, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2018-06-11.
- How severe is CVE-2018-5167?
- Medium severity. CVSS v3 base score is 4.3 out of 10.