XSS in Cpanel

CVE-2017-18420

cPanel before 66.0.2 allows stored XSS during WHM cPAddons processing (SEC-269).

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (41.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cpanel
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2017-18420?: CVE-2017-18420 is a medium-severity vulnerability in Cpanel, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-02.
How severe is CVE-2017-18420?: Medium severity. CVSS v3 base score is 5.4 out of 10.