CVE-2020-21989

Name: CVE-2020-21989
Creator: NVD / NIST
Published: 2021-04-27T18:15:07.807+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2020-21989 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. HomeAutomation 3.3.2 is affected by Cross Site Request Forgery (CSRF). The application interface allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

HomeAutomation 3.3.2 is affected by Cross Site Request Forgery (CSRF). The application interface allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to perform certain actions with administrative privileges if a logged-in user visits a malicious web site.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Homeautomation Project	Homeautomation	3.3.2

References

https://www.exploit-db.com/exploits/47808Exploit, Third Party Advisory, VDB Entry
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5558.phpExploit, Third Party Advisory
https://www.exploit-db.com/exploits/47808Exploit, Third Party Advisory, VDB Entry
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5558.phpExploit, Third Party Advisory

Timeline

Published: Apr 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21989?

How severe is CVE-2020-21989?

CVE-2020-21989 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21989?

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-2020-21989?

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

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Source: NVD / NIST