Improper input validation in Node.js
CVE-2018-12123
Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case "javascript:" (e.g. "javAscript:") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.041 (90.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000
Affected products
- Node.js
- The Node.js Project — versions All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- nodejs.org/en/blog/vulnerability/november-2018-security-releases/ (Patch, Vendor Advisory)
- access.redhat.com/errata/RHSA-2019:1821 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202003-48 (vendor-advisory, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2018-12123?
- CVE-2018-12123 is a medium-severity vulnerability in Node.js, classified under CWE-115. CVSS score: 4.3/10. Published 2018-11-28.
- How severe is CVE-2018-12123?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2018-12123 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.