---
cve: "CVE-2021-47698"
severity: "MEDIUM"
cvss: 5.1
epss: "41%"
vendor: "Nagios"
kev: false
exploited: false
published: "2025-11-03 22:15:53"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-09T06:11:30+02:00"
---

# CVE-2021-47698

> 5.1 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |

## Referenzen

- <https://www.nagios.com/changelog/nagios-xi/>
- <https://www.vulncheck.com/advisories/nagios-xi-xss-in-core-ui-views-url-handling>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-47698) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_