CVE-2020-20294

Name: CVE-2020-20294
Creator: NVD / NIST
Published: 2021-02-01T18:15:13.06+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.77%

Last modified Jun 17, 2026

CVE-2020-20294 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was found in CMSWing project version 1.3.8. Because the log function does not check the log parameter, malicious parameters can execute arbitrary commands.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

An issue was found in CMSWing project version 1.3.8. Because the log function does not check the log parameter, malicious parameters can execute arbitrary commands.

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

1.77%

75.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Cmswing	Cmswing	1.3.8

References

https://github.com/arterli/CmsWing/issues/49Exploit, Third Party Advisory
https://github.com/arterli/CmsWing/issues/49Exploit, Third Party Advisory

Timeline

Published: Feb 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-20294?

An issue was found in CMSWing project version 1.3.8. Because the log function does not check the log parameter, malicious parameters can execute arbitrary commands.

How severe is CVE-2020-20294?

CVE-2020-20294 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2020-20294?

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-2020-20294?

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

Scan your code now

Source: NVD / NIST