CVE-2020-24986

Name: CVE-2020-24986
Creator: NVD / NIST
Published: 2020-09-04T20:15:11.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.98%

Last modified Jun 17, 2026

CVE-2020-24986 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Concrete5 up to and including 8.5.2 allows Unrestricted Upload of File with Dangerous Type such as a .php file via File Manager. It is possible to modify site configuration to upload the PHP file and execute arbitrary commands.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

Concrete5 up to and including 8.5.2 allows Unrestricted Upload of File with Dangerous Type such as a .php file via File Manager. It is possible to modify site configuration to upload the PHP file and execute arbitrary commands.

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

1.98%

78.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Concretecms	Concrete Cms	<= 8.5.2

References

https://hackerone.com/reports/768322Exploit, Third Party Advisory
https://hackerone.com/reports/768322Exploit, Third Party Advisory

Timeline

Published: Sep 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24986?

How severe is CVE-2020-24986?

CVE-2020-24986 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24986?

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-2020-24986?

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

Scan your code now

Source: NVD / NIST