CVE-2018-12123

moderate-risk
Published 2018-11-28

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.

Do I need to act?

~
4.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Nodejs

References (7)

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:1821
Patch https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/
Third Party Advisory https://security.gentoo.org/glsa/202003-48
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:1821
Patch https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/
Third Party Advisory https://security.gentoo.org/glsa/202003-48
https://security.netapp.com/advisory/ntap-20241213-0008/
33
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 8/34 · Low
Exposure 7/34 · Low