CVE-2020-21976

Name: CVE-2020-21976
Creator: NVD / NIST
Published: 2021-08-11T18:15:07.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.85%

Last modified Jun 17, 2026

CVE-2020-21976 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An arbitrary file upload in the <input type="file" name="user_image"> component of NewsOne CMS v1.1.0 allows attackers to webshell and execute arbitrary commands.. EPSS estimates a 1.85% chance of exploitation in the next 30 days.

Description

An arbitrary file upload in the <input type="file" name="user_image"> component of NewsOne CMS v1.1.0 allows attackers to webshell and execute arbitrary commands.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.85%

76.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Newsone Cms Project	Newsone Cms	1.1.0

References

https://cxsecurity.com/issue/WLB-2020010143Exploit, Third Party Advisory
https://cxsecurity.com/issue/WLB-2020010143Exploit, Third Party Advisory

Timeline

Published: Aug 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21976?

An arbitrary file upload in the <input type="file" name="user_image"> component of NewsOne CMS v1.1.0 allows attackers to webshell and execute arbitrary commands.

How severe is CVE-2020-21976?

CVE-2020-21976 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.85% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21976?

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-2020-21976?

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

Scan your code now

Source: NVD / NIST