THREATPORT/VULNERABILITY/CVE-2018-12123
MEDIUM SEVERITY

CVE-2018-12123

Node.Js vulnerability

CVSS
4.3
EPSS
4.0%
EPSS pct
90th
Exploited
No known
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.
Affected vendor
Nodejs
Affected product
Node.Js
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness type (CWE)
Published
2018-11-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to integrity.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2018-12123

  • Confirm whether Nodejs Node.Js is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-12123.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-12123

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-12123 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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