Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the handling of xiwindow variables used to build permalinks in the web 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.
2025-10-30T22:15:35.363
2025-11-06T17:15:41.037
Modified
CVSSv3.1: 5.4 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | nagios | nagios_xi | ≤ 2009 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |
| Application | nagios | nagios_xi | 2011 | Yes |