CVE-2021-47691 - CVE House
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Status published Medium CVE-2021-47691

Nagios XI < 5.8.2 Core Config Manager (CCM) XSS via Services Page

Vulnerability Description

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.1 / Nagios XI 5.8.2 contains multiple cross-site scripting (XSS) vulnerabilities via the Services page affecting the config_name and service_description fields. 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

XI
Vulnerable Versions:
0

Timeline

Official Publish: October 30th, 2025
Last Modified: November 17th, 2025
Added to House: July 21st, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact