CVE-2020-36858

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting (XSS) vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. 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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://www.nagios.com/changelog/nagios-log-server-2024r1/	Release Notes
https://www.vulncheck.com/advisories/nagios-log-server-xss-via-create-user-edit-user-and-manage-host-lists-pages	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nagios:log_server:*:*:*:*:*:*:*:*

History

05 Nov 2025, 18:25

Type	Values Removed	Values Added
References	~~() https://www.nagios.com/changelog/nagios-log-server-2024r1/ -~~	() https://www.nagios.com/changelog/nagios-log-server-2024r1/ - Release Notes
References	~~() https://www.vulncheck.com/advisories/nagios-log-server-xss-via-create-user-edit-user-and-manage-host-lists-pages -~~	() https://www.vulncheck.com/advisories/nagios-log-server-xss-via-create-user-edit-user-and-manage-host-lists-pages - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
First Time		Nagios log Server Nagios
CPE		cpe:2.3:a:nagios:log_server::::::::

30 Oct 2025, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-30 22:15

Updated : 2025-11-05 18:25

NVD link : CVE-2020-36858

Mitre link : CVE-2020-36858

CVE.ORG link : CVE-2020-36858

JSON object : View

Products Affected

nagios

log_server

CWE

CWE-79

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

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