What is CVE-2020-36190?

CVE-2020-36190 is a medium-severity vulnerability in Rails Admin Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-01-12.

How severe is CVE-2020-36190?

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

XSS in Rails Admin Project

CVE-2020-36190

RailsAdmin (aka rails_admin) before 1.4.3 and 2.x before 2.0.2 allows XSS via nested forms.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-01-12 · 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: 0.013 (68.9th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Rails Admin Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/sferik/rails_admin/blob/master/README.md (Exploit, Third Party Advisory)
github.com/sferik/rails_admin/commit/d72090ec6a07c3b9b7b48ab50f3d405f91ff4375 (Patch, Third Party Advisory)
github.com/sferik/rails_admin/compare/v1.4.2...v1.4.3 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-36190?: CVE-2020-36190 is a medium-severity vulnerability in Rails Admin Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-01-12.
How severe is CVE-2020-36190?: Medium severity. CVSS v3 base score is 6.1 out of 10.