CVE-2020-35269

Name: CVE-2020-35269
Creator: NVD / NIST
Published: 2020-12-23T19:15:13.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.30%

Last modified Jun 17, 2026

CVE-2020-35269 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.. EPSS estimates a 2.30% chance of exploitation in the next 30 days.

Description

Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.

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

2.30%

81.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Nagios	Nagios Core	4.2.4

References

https://gist.github.com/MoSalah20/d1d40b43eafba0bd22ee4cddecad3cbcThird Party Advisory
https://gist.github.com/MoSalah20/d1d40b43eafba0bd22ee4cddecad3cbcThird Party Advisory

Timeline

Published: Dec 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35269?

Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.

How severe is CVE-2020-35269?

CVE-2020-35269 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.30% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35269?

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-2020-35269?

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

Scan your code now

Source: NVD / NIST