CVE-2021-25299

MediumCVSS 6.1/10Last modified Jul 9, 2026

Description

Nagios XI version xi-5.7.5 is affected by cross-site scripting (XSS). The vulnerability exists in the file /usr/local/nagiosxi/html/admin/sshterm.php due to improper sanitization of user-controlled input. A maliciously crafted URL, when clicked by an admin user, can be used to steal his/her session cookies or it can be chained with the previous bugs to get one-click remote command execution (RCE) on the Nagios XI server.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://packetstormsecurity.com/files/161561/Nagios-XI-5.7.5-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://assets.nagios.com/downloads/nagiosxi/versions.phpProduct
https://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.mdExploit, Third Party Advisory
http://packetstormsecurity.com/files/161561/Nagios-XI-5.7.5-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://assets.nagios.com/downloads/nagiosxi/versions.phpProduct
https://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.mdExploit, Third Party Advisory

Timeline

Published: Feb 15, 2021
Last modified: Jul 9, 2026
NVD status: Modified

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