CVE-2026-48552

MediumCVSS 5.4/10Last modified Sep 8, 2026

Description

Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 are vulnerable to DOM-based cross-site scripting in jsonquery.js. Unencoded JSON string values reflected from stored fields are inserted into the DOM without sanitization, allowing attackers to run arbitrary JavaScript in the victim's browser.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Nagios Enterprises, LLC.	Nagios Core	< 4.5.14
Nagios Enterprises, LLC.	Nagios XI	< 2026R1.7

References

Timeline

Published: Aug 12, 2026
Last modified: Sep 8, 2026
NVD status: Awaiting Analysis

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