CVE-2020-23219

Name: CVE-2020-23219
Creator: NVD / NIST
Published: 2021-07-01T21:15:08.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.58%

Last modified Jun 17, 2026

CVE-2020-23219 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Monstra CMS 3.0.4 allows attackers to execute arbitrary code via a crafted payload entered into the "Snippet content" field under the "Edit Snippet" module.. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

Monstra CMS 3.0.4 allows attackers to execute arbitrary code via a crafted payload entered into the "Snippet content" field under the "Edit Snippet" module.

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

1.58%

72.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Monstra	Monstra Cms	3.0.4

References

https://github.com/monstra-cms/monstra/issues/466Exploit, Issue Tracking, Third Party Advisory
https://github.com/monstra-cms/monstra/issues/466Exploit, Issue Tracking, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-23219?

Monstra CMS 3.0.4 allows attackers to execute arbitrary code via a crafted payload entered into the "Snippet content" field under the "Edit Snippet" module.

How severe is CVE-2020-23219?

CVE-2020-23219 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23219?

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-2020-23219?

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

Scan your code now

Source: NVD / NIST