CVE-2020-36409

Name: CVE-2020-36409
Creator: NVD / NIST
Published: 2021-07-02T18:15:08.74+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2020-36409 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross scripting (XSS) vulnerability in CMS Made Simple 2.2.14 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "Add Category" parameter under the "Categories" module.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

A stored cross scripting (XSS) vulnerability in CMS Made Simple 2.2.14 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "Add Category" parameter under the "Categories" module.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.47%

37.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Cmsmadesimple	Cms Made Simple	2.2.14

References

http://dev.cmsmadesimple.org/bug/view/12325Exploit, Issue Tracking, Vendor Advisory
http://dev.cmsmadesimple.org/bug/view/12325Exploit, Issue Tracking, Vendor Advisory

Timeline

Published: Jul 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36409?

How severe is CVE-2020-36409?

CVE-2020-36409 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36409?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36409?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST