What is CVE-2018-20302?

CVE-2018-20302 is a medium-severity vulnerability in Emetrotel Xain, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-20.

How severe is CVE-2018-20302?

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

XSS in Emetrotel Xain

CVE-2018-20302

An XSS issue was discovered in Steve Pallen Xain before 0.6.2 via the order parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-12-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Emetrotel Xain

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/smpallen99/xain/issues/18 (Patch, Third Party Advisory, Issue Tracking)
github.com/dependabot/elixir-security-advisories/blob/master/packages/xain/2018… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20302?: CVE-2018-20302 is a medium-severity vulnerability in Emetrotel Xain, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-20.
How severe is CVE-2018-20302?: Medium severity. CVSS v3 base score is 6.1 out of 10.