CVE-2021-47698
Nagios XI < 5.8.7 XSS in Core UI Views URL handling
- State
- Published
- Severity
- 5.1 Medium
- Published
- Nov 3, 2025
- Updated
- Nov 17, 2025
- Reserved
- Oct 30, 2025
Description
Nagios XI versions prior to 5.8.7 using embedded Nagios Core are vulnerable to cross-site scripting (XSS) via the Core UI’s Views URL handling (escape_string()). 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | 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 | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
XINagios |
|
References
- https://www.nagios.com/changelog/nagios-xi/release-notespatch
- https://www.vulncheck.com/advisories/nagios-xi-xss-in-core-ui-views-url-handlingthird-party-advisory
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