CVE-2020-24036

Name: CVE-2020-24036
Creator: NVD / NIST
Published: 2021-03-04T13:15:14.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.94%

Last modified Jun 17, 2026

CVE-2020-24036 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. PHP object injection in the Ajax endpoint of the backend in ForkCMS below version 5.8.3 allows an authenticated remote user to execute malicious code.. EPSS estimates a 2.94% chance of exploitation in the next 30 days.

Description

PHP object injection in the Ajax endpoint of the backend in ForkCMS below version 5.8.3 allows an authenticated remote user to execute malicious code.

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

2.94%

85.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Fork-Cms	Fork Cms	< 5.8.3

References

http://forkcms.comProduct
http://seclists.org/fulldisclosure/2021/Mar/31Exploit, Mailing List, Third Party Advisory
https://tech.feedyourhead.at/content/ForkCMS-PHP-Object-Injection-CVE-2020-24036Exploit, Patch, Third Party Advisory
https://www.ait.ac.at/themen/cyber-security/pentesting/security-advisories/ait-sa-20210215-04Exploit, Patch, Third Party Advisory
http://forkcms.comProduct
http://seclists.org/fulldisclosure/2021/Mar/31Exploit, Mailing List, Third Party Advisory
https://tech.feedyourhead.at/content/ForkCMS-PHP-Object-Injection-CVE-2020-24036Exploit, Patch, Third Party Advisory
https://www.ait.ac.at/themen/cyber-security/pentesting/security-advisories/ait-sa-20210215-04Exploit, Patch, Third Party Advisory

Timeline

Published: Mar 4, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24036?

PHP object injection in the Ajax endpoint of the backend in ForkCMS below version 5.8.3 allows an authenticated remote user to execute malicious code.

How severe is CVE-2020-24036?

CVE-2020-24036 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.94% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24036?

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-2020-24036?

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

Scan your code now

Source: NVD / NIST