CVE-2021-40279

Name: CVE-2021-40279
Creator: NVD / NIST
Published: 2021-12-09T16:15:08.3+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2021-40279 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. An SQL Injection vulnerability exists in zzcms 8.2, 8.3, 2020, and 2021 via the id parameter in admin/bad.php.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

An SQL Injection vulnerability exists in zzcms 8.2, 8.3, 2020, and 2021 via the id parameter in admin/bad.php.

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

1.10%

61.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Zzcms	Zzcms	8.2
Zzcms	Zzcms	8.3
Zzcms	Zzcms	2020
Zzcms	Zzcms	2021

References

https://gist.github.com/aaaahuia/b99596c6de9bd6f60e0ddb7bf0bd13c4Exploit, Third Party Advisory
https://gist.github.com/aaaahuia/b99596c6de9bd6f60e0ddb7bf0bd13c4Exploit, Third Party Advisory

Timeline

Published: Dec 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40279?

An SQL Injection vulnerability exists in zzcms 8.2, 8.3, 2020, and 2021 via the id parameter in admin/bad.php.

How severe is CVE-2021-40279?

CVE-2021-40279 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40279?

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-2021-40279?

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

Scan your code now

Source: NVD / NIST