What is CVE-2020-20522?

CVE-2020-20522 is a medium-severity vulnerability in Kitesky Kitecms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-04-04.

How severe is CVE-2020-20522?

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

XSS in Kitesky Kitecms

CVE-2020-20522

Cross Site Scripting vulnerability found in KiteCMS v.1.1 allows a remote attacker to execute arbitrary code via the registering user parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-04-04 · 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: 0.006 (44.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Kitesky Kitecms — versions 1.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/Kitesky/KiteCMS/issues/1 (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2020-20522?: CVE-2020-20522 is a medium-severity vulnerability in Kitesky Kitecms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-04-04.
How severe is CVE-2020-20522?: Medium severity. CVSS v3 base score is 6.1 out of 10.