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CVE Vulnerability Details :
CVE-2020-36866
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-30 Oct, 2025 | 21:53
Updated At-17 Nov, 2025 | 18:21
Rejected At-
▼CVE Numbering Authority (CNA)
Nagios XI < 5.7.3 XSS via Manage Users in Admin Interface

Nagios XI versions prior to 5.7.3 are vulnerable to cross-site scripting (XSS) via the Manage Users page of the Admin interface. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

Affected Products
Vendor
Nagios Enterprises, LLCNagios
Product
XI
Modules
  • Web UI – Admin → Manage Users (user list/detail renderers)
Default Status
unaffected
Versions
Affected
  • From 0 before 5.7.3 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-79CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Type: CWE
CWE ID: CWE-79
Description: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Metrics
VersionBase scoreBase severityVector
4.05.1MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Version: 4.0
Base score: 5.1
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-63CAPEC-63 Cross-Site Scripting (XSS)
CAPEC ID: CAPEC-63
Description: CAPEC-63 Cross-Site Scripting (XSS)
Solutions

Nagios addresses this vulnerability as "Fixed XSS security vulnerability in Admin -> Manage Users."

Configurations
Workarounds
Exploits
Credits
finder
Christian Weiler
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.nagios.com/changelog/nagios-xi/
release-notes
patch
https://www.vulncheck.com/advisories/nagios-xi-xss-via-manage-users-in-admin-interface
third-party-advisory
Hyperlink: https://www.nagios.com/changelog/nagios-xi/
Resource:
release-notes
patch
Hyperlink: https://www.vulncheck.com/advisories/nagios-xi-xss-via-manage-users-in-admin-interface
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found