Vulnerability in Mozilla Firefox
CVE-2018-5112
Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances. This could allow the development tools panel for the extension to load a URL that it should not be able to access, including potentially privileged pages. This vulnerability affects Firefox < 58.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.020 (79.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- www.securitytracker.com/id/1040270 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- usn.ubuntu.com/3544-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/102786 (VDB Entry, Third Party Advisory, vdb-entry)
- www.mozilla.org/security/advisories/mfsa2018-02/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-5112?
- CVE-2018-5112 is a high-severity vulnerability in Mozilla Firefox, classified under Files or Directories Accessible to External Parties. CVSS score: 7.5/10. Published 2018-06-11.
- How severe is CVE-2018-5112?
- High severity. CVSS v3 base score is 7.5 out of 10.