What is CVE-2020-13427?

CVE-2020-13427 is a medium-severity vulnerability in Victorcms Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-06-22.

How severe is CVE-2020-13427?

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

XSS in Victorcms Project

CVE-2020-13427

Victor CMS 1.0 has Persistent XSS in admin/users.php?source=add_user via the user_name, user_firstname, or user_lastname parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-06-22 · 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: 0.009 (57.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.5% 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

Victorcms Project — versions 1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/VictorAlagwu/CMSsite/commits/master (Patch, Third Party Advisory)
www.exploit-db.com/exploits/48511 (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-13427?: CVE-2020-13427 is a medium-severity vulnerability in Victorcms Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-06-22.
How severe is CVE-2020-13427?: Medium severity. CVSS v3 base score is 6.1 out of 10.