CVE-2020-21784

Name: CVE-2020-21784
Creator: NVD / NIST
Published: 2021-06-24T16:15:08.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.40%

Last modified Jun 17, 2026

CVE-2020-21784 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. phpwcms 1.9.13 is vulnerable to Code Injection via /phpwcms/setup/setup.php.. EPSS estimates a 1.40% chance of exploitation in the next 30 days.

Description

phpwcms 1.9.13 is vulnerable to Code Injection via /phpwcms/setup/setup.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

1.40%

69.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Phpwcms	Phpwcms	1.9.13

References

https://cwe.mitre.org/data/definitions/96.htmlTechnical Description
https://github.com/slackero/phpwcms/issues/286Exploit, Issue Tracking, Third Party Advisory
https://cwe.mitre.org/data/definitions/96.htmlTechnical Description
https://github.com/slackero/phpwcms/issues/286Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Jun 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21784?

phpwcms 1.9.13 is vulnerable to Code Injection via /phpwcms/setup/setup.php.

How severe is CVE-2020-21784?

CVE-2020-21784 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21784?

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-2020-21784?

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

Scan your code now

Source: NVD / NIST