Which products and versions are affected by CVE-2021-38156?

Affected: Nagios Xi. The full list is in the CVE brief.

Is CVE-2021-38156 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2021-38156 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-38156?

No public exploit code is known.

Is there a fix for CVE-2021-38156?

Fixed versions are available, including Nagios Xi 5.8.6.

How urgently should CVE-2021-38156 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Request A Demo

Vulnerability Intelligence

CVE-2021-38156

Medium

In Nagios XI before 5.8.6, XSS exists in the dashboard page (/dashboards/#) when administrative users attempt to edit a dashboard.

Published Sep 15, 2021 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2021-38156 is a medium-severity vulnerability (CVSS 5.4 v3.1) affecting Nagios Xi.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 93% probability of exploitation in the next 30 days.
Fixed versions are available, including Nagios Xi 5.8.6.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

5.4

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

EPSS (30-day exploit likelihood)

93%

Higher than 99.8% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2021-38156 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

In Nagios XI before 5.8.6, XSS exists in the dashboard page (/dashboards/#) when administrative users attempt to edit a dashboard.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Nagios XiNagios	See advisory	5.8.6

Patched Releases

Nagios Xi

5.8.6

Timeline

Publicly disclosed
Sep 15, 2021
Last updated
Nov 21, 2024

Weakness Type

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

FAQ

Common Questions.

In Nagios XI before 5.8.6, XSS exists in the dashboard page (/dashboards/#) when administrative users attempt to edit a dashboard.
Affected: Nagios Xi. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Nagios Xi 5.8.6.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2021-38156 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.