CVE-2020-21250

Name: CVE-2020-21250
Creator: NVD / NIST
Published: 2021-10-27T20:15:07.817+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2020-21250 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. CSZ CMS v1.2.4 was discovered to contain an arbitrary file upload vulnerability in the component /core/MY_Security.php.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

CSZ CMS v1.2.4 was discovered to contain an arbitrary file upload vulnerability in the component /core/MY_Security.php.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Cszcms	Csz Cms	1.2.4

References

https://github.com/cskaza/cszcms/issues/22Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/cskaza/cszcms/issues/22Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Oct 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21250?

CSZ CMS v1.2.4 was discovered to contain an arbitrary file upload vulnerability in the component /core/MY_Security.php.

How severe is CVE-2020-21250?

CVE-2020-21250 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21250?

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-2020-21250?

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

Scan your code now

Source: NVD / NIST