CVE-2020-23992

Name: CVE-2020-23992
Creator: NVD / NIST
Published: 2023-08-22T19:16:19.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.94%

Last modified Jun 17, 2026

CVE-2020-23992 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross Site Scripting (XSS) in Nagios XI 5.7.1 allows remote attackers to run arbitrary code via returnUrl parameter in a crafted GET request.. EPSS estimates a 1.94% chance of exploitation in the next 30 days.

Description

Cross Site Scripting (XSS) in Nagios XI 5.7.1 allows remote attackers to run arbitrary code via returnUrl parameter in a crafted GET request.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.94%

77.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Nagios	Nagios Xi	5.7.1

References

https://github.com/EmreOvunc/Nagios-XI-Reflected-XSSExploit, Third Party Advisory
https://github.com/EmreOvunc/Nagios-XI-Reflected-XSSExploit, Third Party Advisory

Timeline

Published: Aug 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23992?

Cross Site Scripting (XSS) in Nagios XI 5.7.1 allows remote attackers to run arbitrary code via returnUrl parameter in a crafted GET request.

How severe is CVE-2020-23992?

CVE-2020-23992 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.94% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23992?

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-2020-23992?

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

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Source: NVD / NIST