CVE-2021-42171

Name: CVE-2021-42171
Creator: NVD / NIST
Published: 2022-03-14T15:15:09.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.48%

Last modified Jun 17, 2026

CVE-2021-42171 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Zenario CMS 9.0.54156 is vulnerable to File Upload. The web server can be compromised by uploading and executing a web-shell which can run commands, browse system files, browse local resources, attack other servers, and exploit the local vulnerabilities, and so forth.. EPSS estimates a 2.48% chance of exploitation in the next 30 days.

Description

Zenario CMS 9.0.54156 is vulnerable to File Upload. The web server can be compromised by uploading and executing a web-shell which can run commands, browse system files, browse local resources, attack other servers, and exploit the local vulnerabilities, and so forth.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

2.48%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Tribalsystems	Zenario	9.0.54156

References

http://packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.htmlExploit, Third Party Advisory
https://github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2Exploit, Issue Tracking, Third Party Advisory
https://minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74Third Party Advisory
http://packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.htmlExploit, Third Party Advisory
https://github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2Exploit, Issue Tracking, Third Party Advisory
https://minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74Third Party Advisory

Timeline

Published: Mar 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42171?

How severe is CVE-2021-42171?

CVE-2021-42171 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.48% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42171?

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-2021-42171?

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

Scan your code now

Source: NVD / NIST