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.
Published: 2025-11-03
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Nagios addresses this vulnerability as "Fixed XSS vulnerability in Nagios Core ui by patching Core for XI systems with escape_string()."

Tracking

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Advisories

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History

Fri, 07 Nov 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Nagios nagios Xi
CPEs cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*
Vendors & Products Nagios nagios Xi
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Thu, 06 Nov 2025 19:30:00 +0000

Type Values Removed Values Added
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. 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. 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.

Wed, 05 Nov 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 04 Nov 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Nagios
Nagios xi
Vendors & Products Nagios
Nagios xi

Mon, 03 Nov 2025 22:15:00 +0000

Type Values Removed Values Added
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. 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.
Title Nagios XI < 5.8.7 XSS in Core UI Views URL handling
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-11-17T18:21:43.378Z

Reserved: 2025-10-30T15:47:16.865Z

Link: CVE-2021-47698

cve-icon Vulnrichment

Updated: 2025-11-05T15:22:05.846Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-03T22:15:53.100

Modified: 2025-11-07T12:55:54.663

Link: CVE-2021-47698

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-04T16:34:46Z

Weaknesses