What is CVE-2019-18419?

CVE-2019-18419 is a medium-severity vulnerability in Clonos, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-10-24.

How severe is CVE-2019-18419?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Clonos

CVE-2019-18419

A cross-site scripting (XSS) vulnerability in index.php in ClonOS WEB control panel 19.09 allows remote attackers to inject arbitrary web script or HTML via the lang parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-10-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.5th percentile), scored 2026-10-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Clonos — versions 19.09

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/Andhrimnirr/ClonOS-WEB-control-panel-multi-vulnerability (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-18419?: CVE-2019-18419 is a medium-severity vulnerability in Clonos, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-10-24.
How severe is CVE-2019-18419?: Medium severity. CVSS v3 base score is 6.1 out of 10.