What is CVE-2018-5216?

CVE-2018-5216 is a medium-severity vulnerability in Radiantcms Radiant Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-01-04.

How severe is CVE-2018-5216?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Radiantcms Radiant Cms

CVE-2018-5216

Radiant CMS 1.1.4 has XSS via crafted Markdown input in the part_body_content parameter to an admin/pages/*/edit resource.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-01-04 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.005 (43.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Radiantcms Radiant Cms — versions 1.1.4

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/imsebao/404team/blob/master/radiantcms.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-5216?: CVE-2018-5216 is a medium-severity vulnerability in Radiantcms Radiant Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-01-04.
How severe is CVE-2018-5216?: Medium severity. CVSS v3 base score is 5.4 out of 10.