Vulnerability in Mozilla Firefox
CVE-2018-5142
If Media Capture and Streams API permission is requested from documents with "data:" or "blob:" URLs, the permission notifications do not properly display the originating domain. The notification states "Unknown protocol" as the requestee, leading to user confusion about which site is asking for this permission. This vulnerability affects Firefox < 59.
Published · last modified .
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:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
References
- www.securityfocus.com/bid/103386 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required)
- www.securitytracker.com/id/1040514 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3596-1/ (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-06/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-5142?
- CVE-2018-5142 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 5.3/10. Published 2018-06-11.
- How severe is CVE-2018-5142?
- Medium severity. CVSS v3 base score is 5.3 out of 10.