CVE-2020-28903

Published: May 24, 2021Modified: Jun 17, 2026

6.1

Vector

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

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

Improper input validation in Nagios Fusion 4.1.8 and earlier allows a remote attacker with control over a fused server to inject arbitrary HTML, aka XSS.

Affected (1)

Products: Nagios: Fusion

Nagios

1 product

Fusion

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nagios Fusion	Up to 4.1.8

Related CWEs

CWE-79

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (6)

http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/

Source: cve@mitre.org

ExploitThird Party Advisory

https://www.nagios.com/downloads/nagios-xi/change-log/

Source: cve@mitre.org

Release NotesVendor Advisory

http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

https://www.nagios.com/downloads/nagios-xi/change-log/

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.